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1// SPDX-License-Identifier: GPL-2.02/* Copyright (c) 2018-2023, Intel Corporation. */3 4/* Intel(R) Ethernet Connection E800 Series Linux Driver */5 6#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt7 8#include <generated/utsrelease.h>9#include <linux/crash_dump.h>10#include "ice.h"11#include "ice_base.h"12#include "ice_lib.h"13#include "ice_fltr.h"14#include "ice_dcb_lib.h"15#include "ice_dcb_nl.h"16#include "devlink/devlink.h"17#include "devlink/devlink_port.h"18#include "ice_sf_eth.h"19#include "ice_hwmon.h"20/* Including ice_trace.h with CREATE_TRACE_POINTS defined will generate the21 * ice tracepoint functions. This must be done exactly once across the22 * ice driver.23 */24#define CREATE_TRACE_POINTS25#include "ice_trace.h"26#include "ice_eswitch.h"27#include "ice_tc_lib.h"28#include "ice_vsi_vlan_ops.h"29#include <net/xdp_sock_drv.h>30 31#define DRV_SUMMARY "Intel(R) Ethernet Connection E800 Series Linux Driver"32static const char ice_driver_string[] = DRV_SUMMARY;33static const char ice_copyright[] = "Copyright (c) 2018, Intel Corporation.";34 35/* DDP Package file located in firmware search paths (e.g. /lib/firmware/) */36#define ICE_DDP_PKG_PATH "intel/ice/ddp/"37#define ICE_DDP_PKG_FILE ICE_DDP_PKG_PATH "ice.pkg"38 39MODULE_DESCRIPTION(DRV_SUMMARY);40MODULE_IMPORT_NS(LIBIE);41MODULE_LICENSE("GPL v2");42MODULE_FIRMWARE(ICE_DDP_PKG_FILE);43 44static int debug = -1;45module_param(debug, int, 0644);46#ifndef CONFIG_DYNAMIC_DEBUG47MODULE_PARM_DESC(debug, "netif level (0=none,...,16=all), hw debug_mask (0x8XXXXXXX)");48#else49MODULE_PARM_DESC(debug, "netif level (0=none,...,16=all)");50#endif /* !CONFIG_DYNAMIC_DEBUG */51 52DEFINE_STATIC_KEY_FALSE(ice_xdp_locking_key);53EXPORT_SYMBOL(ice_xdp_locking_key);54 55/**56 * ice_hw_to_dev - Get device pointer from the hardware structure57 * @hw: pointer to the device HW structure58 *59 * Used to access the device pointer from compilation units which can't easily60 * include the definition of struct ice_pf without leading to circular header61 * dependencies.62 */63struct device *ice_hw_to_dev(struct ice_hw *hw)64{65 struct ice_pf *pf = container_of(hw, struct ice_pf, hw);66 67 return &pf->pdev->dev;68}69 70static struct workqueue_struct *ice_wq;71struct workqueue_struct *ice_lag_wq;72static const struct net_device_ops ice_netdev_safe_mode_ops;73static const struct net_device_ops ice_netdev_ops;74 75static void ice_rebuild(struct ice_pf *pf, enum ice_reset_req reset_type);76 77static void ice_vsi_release_all(struct ice_pf *pf);78 79static int ice_rebuild_channels(struct ice_pf *pf);80static void ice_remove_q_channels(struct ice_vsi *vsi, bool rem_adv_fltr);81 82static int83ice_indr_setup_tc_cb(struct net_device *netdev, struct Qdisc *sch,84 void *cb_priv, enum tc_setup_type type, void *type_data,85 void *data,86 void (*cleanup)(struct flow_block_cb *block_cb));87 88bool netif_is_ice(const struct net_device *dev)89{90 return dev && (dev->netdev_ops == &ice_netdev_ops ||91 dev->netdev_ops == &ice_netdev_safe_mode_ops);92}93 94/**95 * ice_get_tx_pending - returns number of Tx descriptors not processed96 * @ring: the ring of descriptors97 */98static u16 ice_get_tx_pending(struct ice_tx_ring *ring)99{100 u16 head, tail;101 102 head = ring->next_to_clean;103 tail = ring->next_to_use;104 105 if (head != tail)106 return (head < tail) ?107 tail - head : (tail + ring->count - head);108 return 0;109}110 111/**112 * ice_check_for_hang_subtask - check for and recover hung queues113 * @pf: pointer to PF struct114 */115static void ice_check_for_hang_subtask(struct ice_pf *pf)116{117 struct ice_vsi *vsi = NULL;118 struct ice_hw *hw;119 unsigned int i;120 int packets;121 u32 v;122 123 ice_for_each_vsi(pf, v)124 if (pf->vsi[v] && pf->vsi[v]->type == ICE_VSI_PF) {125 vsi = pf->vsi[v];126 break;127 }128 129 if (!vsi || test_bit(ICE_VSI_DOWN, vsi->state))130 return;131 132 if (!(vsi->netdev && netif_carrier_ok(vsi->netdev)))133 return;134 135 hw = &vsi->back->hw;136 137 ice_for_each_txq(vsi, i) {138 struct ice_tx_ring *tx_ring = vsi->tx_rings[i];139 struct ice_ring_stats *ring_stats;140 141 if (!tx_ring)142 continue;143 if (ice_ring_ch_enabled(tx_ring))144 continue;145 146 ring_stats = tx_ring->ring_stats;147 if (!ring_stats)148 continue;149 150 if (tx_ring->desc) {151 /* If packet counter has not changed the queue is152 * likely stalled, so force an interrupt for this153 * queue.154 *155 * prev_pkt would be negative if there was no156 * pending work.157 */158 packets = ring_stats->stats.pkts & INT_MAX;159 if (ring_stats->tx_stats.prev_pkt == packets) {160 /* Trigger sw interrupt to revive the queue */161 ice_trigger_sw_intr(hw, tx_ring->q_vector);162 continue;163 }164 165 /* Memory barrier between read of packet count and call166 * to ice_get_tx_pending()167 */168 smp_rmb();169 ring_stats->tx_stats.prev_pkt =170 ice_get_tx_pending(tx_ring) ? packets : -1;171 }172 }173}174 175/**176 * ice_init_mac_fltr - Set initial MAC filters177 * @pf: board private structure178 *179 * Set initial set of MAC filters for PF VSI; configure filters for permanent180 * address and broadcast address. If an error is encountered, netdevice will be181 * unregistered.182 */183static int ice_init_mac_fltr(struct ice_pf *pf)184{185 struct ice_vsi *vsi;186 u8 *perm_addr;187 188 vsi = ice_get_main_vsi(pf);189 if (!vsi)190 return -EINVAL;191 192 perm_addr = vsi->port_info->mac.perm_addr;193 return ice_fltr_add_mac_and_broadcast(vsi, perm_addr, ICE_FWD_TO_VSI);194}195 196/**197 * ice_add_mac_to_sync_list - creates list of MAC addresses to be synced198 * @netdev: the net device on which the sync is happening199 * @addr: MAC address to sync200 *201 * This is a callback function which is called by the in kernel device sync202 * functions (like __dev_uc_sync, __dev_mc_sync, etc). This function only203 * populates the tmp_sync_list, which is later used by ice_add_mac to add the204 * MAC filters from the hardware.205 */206static int ice_add_mac_to_sync_list(struct net_device *netdev, const u8 *addr)207{208 struct ice_netdev_priv *np = netdev_priv(netdev);209 struct ice_vsi *vsi = np->vsi;210 211 if (ice_fltr_add_mac_to_list(vsi, &vsi->tmp_sync_list, addr,212 ICE_FWD_TO_VSI))213 return -EINVAL;214 215 return 0;216}217 218/**219 * ice_add_mac_to_unsync_list - creates list of MAC addresses to be unsynced220 * @netdev: the net device on which the unsync is happening221 * @addr: MAC address to unsync222 *223 * This is a callback function which is called by the in kernel device unsync224 * functions (like __dev_uc_unsync, __dev_mc_unsync, etc). This function only225 * populates the tmp_unsync_list, which is later used by ice_remove_mac to226 * delete the MAC filters from the hardware.227 */228static int ice_add_mac_to_unsync_list(struct net_device *netdev, const u8 *addr)229{230 struct ice_netdev_priv *np = netdev_priv(netdev);231 struct ice_vsi *vsi = np->vsi;232 233 /* Under some circumstances, we might receive a request to delete our234 * own device address from our uc list. Because we store the device235 * address in the VSI's MAC filter list, we need to ignore such236 * requests and not delete our device address from this list.237 */238 if (ether_addr_equal(addr, netdev->dev_addr))239 return 0;240 241 if (ice_fltr_add_mac_to_list(vsi, &vsi->tmp_unsync_list, addr,242 ICE_FWD_TO_VSI))243 return -EINVAL;244 245 return 0;246}247 248/**249 * ice_vsi_fltr_changed - check if filter state changed250 * @vsi: VSI to be checked251 *252 * returns true if filter state has changed, false otherwise.253 */254static bool ice_vsi_fltr_changed(struct ice_vsi *vsi)255{256 return test_bit(ICE_VSI_UMAC_FLTR_CHANGED, vsi->state) ||257 test_bit(ICE_VSI_MMAC_FLTR_CHANGED, vsi->state);258}259 260/**261 * ice_set_promisc - Enable promiscuous mode for a given PF262 * @vsi: the VSI being configured263 * @promisc_m: mask of promiscuous config bits264 *265 */266static int ice_set_promisc(struct ice_vsi *vsi, u8 promisc_m)267{268 int status;269 270 if (vsi->type != ICE_VSI_PF)271 return 0;272 273 if (ice_vsi_has_non_zero_vlans(vsi)) {274 promisc_m |= (ICE_PROMISC_VLAN_RX | ICE_PROMISC_VLAN_TX);275 status = ice_fltr_set_vlan_vsi_promisc(&vsi->back->hw, vsi,276 promisc_m);277 } else {278 status = ice_fltr_set_vsi_promisc(&vsi->back->hw, vsi->idx,279 promisc_m, 0);280 }281 if (status && status != -EEXIST)282 return status;283 284 netdev_dbg(vsi->netdev, "set promisc filter bits for VSI %i: 0x%x\n",285 vsi->vsi_num, promisc_m);286 return 0;287}288 289/**290 * ice_clear_promisc - Disable promiscuous mode for a given PF291 * @vsi: the VSI being configured292 * @promisc_m: mask of promiscuous config bits293 *294 */295static int ice_clear_promisc(struct ice_vsi *vsi, u8 promisc_m)296{297 int status;298 299 if (vsi->type != ICE_VSI_PF)300 return 0;301 302 if (ice_vsi_has_non_zero_vlans(vsi)) {303 promisc_m |= (ICE_PROMISC_VLAN_RX | ICE_PROMISC_VLAN_TX);304 status = ice_fltr_clear_vlan_vsi_promisc(&vsi->back->hw, vsi,305 promisc_m);306 } else {307 status = ice_fltr_clear_vsi_promisc(&vsi->back->hw, vsi->idx,308 promisc_m, 0);309 }310 311 netdev_dbg(vsi->netdev, "clear promisc filter bits for VSI %i: 0x%x\n",312 vsi->vsi_num, promisc_m);313 return status;314}315 316/**317 * ice_vsi_sync_fltr - Update the VSI filter list to the HW318 * @vsi: ptr to the VSI319 *320 * Push any outstanding VSI filter changes through the AdminQ.321 */322static int ice_vsi_sync_fltr(struct ice_vsi *vsi)323{324 struct ice_vsi_vlan_ops *vlan_ops = ice_get_compat_vsi_vlan_ops(vsi);325 struct device *dev = ice_pf_to_dev(vsi->back);326 struct net_device *netdev = vsi->netdev;327 bool promisc_forced_on = false;328 struct ice_pf *pf = vsi->back;329 struct ice_hw *hw = &pf->hw;330 u32 changed_flags = 0;331 int err;332 333 if (!vsi->netdev)334 return -EINVAL;335 336 while (test_and_set_bit(ICE_CFG_BUSY, vsi->state))337 usleep_range(1000, 2000);338 339 changed_flags = vsi->current_netdev_flags ^ vsi->netdev->flags;340 vsi->current_netdev_flags = vsi->netdev->flags;341 342 INIT_LIST_HEAD(&vsi->tmp_sync_list);343 INIT_LIST_HEAD(&vsi->tmp_unsync_list);344 345 if (ice_vsi_fltr_changed(vsi)) {346 clear_bit(ICE_VSI_UMAC_FLTR_CHANGED, vsi->state);347 clear_bit(ICE_VSI_MMAC_FLTR_CHANGED, vsi->state);348 349 /* grab the netdev's addr_list_lock */350 netif_addr_lock_bh(netdev);351 __dev_uc_sync(netdev, ice_add_mac_to_sync_list,352 ice_add_mac_to_unsync_list);353 __dev_mc_sync(netdev, ice_add_mac_to_sync_list,354 ice_add_mac_to_unsync_list);355 /* our temp lists are populated. release lock */356 netif_addr_unlock_bh(netdev);357 }358 359 /* Remove MAC addresses in the unsync list */360 err = ice_fltr_remove_mac_list(vsi, &vsi->tmp_unsync_list);361 ice_fltr_free_list(dev, &vsi->tmp_unsync_list);362 if (err) {363 netdev_err(netdev, "Failed to delete MAC filters\n");364 /* if we failed because of alloc failures, just bail */365 if (err == -ENOMEM)366 goto out;367 }368 369 /* Add MAC addresses in the sync list */370 err = ice_fltr_add_mac_list(vsi, &vsi->tmp_sync_list);371 ice_fltr_free_list(dev, &vsi->tmp_sync_list);372 /* If filter is added successfully or already exists, do not go into373 * 'if' condition and report it as error. Instead continue processing374 * rest of the function.375 */376 if (err && err != -EEXIST) {377 netdev_err(netdev, "Failed to add MAC filters\n");378 /* If there is no more space for new umac filters, VSI379 * should go into promiscuous mode. There should be some380 * space reserved for promiscuous filters.381 */382 if (hw->adminq.sq_last_status == ICE_AQ_RC_ENOSPC &&383 !test_and_set_bit(ICE_FLTR_OVERFLOW_PROMISC,384 vsi->state)) {385 promisc_forced_on = true;386 netdev_warn(netdev, "Reached MAC filter limit, forcing promisc mode on VSI %d\n",387 vsi->vsi_num);388 } else {389 goto out;390 }391 }392 err = 0;393 /* check for changes in promiscuous modes */394 if (changed_flags & IFF_ALLMULTI) {395 if (vsi->current_netdev_flags & IFF_ALLMULTI) {396 err = ice_set_promisc(vsi, ICE_MCAST_PROMISC_BITS);397 if (err) {398 vsi->current_netdev_flags &= ~IFF_ALLMULTI;399 goto out_promisc;400 }401 } else {402 /* !(vsi->current_netdev_flags & IFF_ALLMULTI) */403 err = ice_clear_promisc(vsi, ICE_MCAST_PROMISC_BITS);404 if (err) {405 vsi->current_netdev_flags |= IFF_ALLMULTI;406 goto out_promisc;407 }408 }409 }410 411 if (((changed_flags & IFF_PROMISC) || promisc_forced_on) ||412 test_bit(ICE_VSI_PROMISC_CHANGED, vsi->state)) {413 clear_bit(ICE_VSI_PROMISC_CHANGED, vsi->state);414 if (vsi->current_netdev_flags & IFF_PROMISC) {415 /* Apply Rx filter rule to get traffic from wire */416 if (!ice_is_dflt_vsi_in_use(vsi->port_info)) {417 err = ice_set_dflt_vsi(vsi);418 if (err && err != -EEXIST) {419 netdev_err(netdev, "Error %d setting default VSI %i Rx rule\n",420 err, vsi->vsi_num);421 vsi->current_netdev_flags &=422 ~IFF_PROMISC;423 goto out_promisc;424 }425 err = 0;426 vlan_ops->dis_rx_filtering(vsi);427 428 /* promiscuous mode implies allmulticast so429 * that VSIs that are in promiscuous mode are430 * subscribed to multicast packets coming to431 * the port432 */433 err = ice_set_promisc(vsi,434 ICE_MCAST_PROMISC_BITS);435 if (err)436 goto out_promisc;437 }438 } else {439 /* Clear Rx filter to remove traffic from wire */440 if (ice_is_vsi_dflt_vsi(vsi)) {441 err = ice_clear_dflt_vsi(vsi);442 if (err) {443 netdev_err(netdev, "Error %d clearing default VSI %i Rx rule\n",444 err, vsi->vsi_num);445 vsi->current_netdev_flags |=446 IFF_PROMISC;447 goto out_promisc;448 }449 if (vsi->netdev->features &450 NETIF_F_HW_VLAN_CTAG_FILTER)451 vlan_ops->ena_rx_filtering(vsi);452 }453 454 /* disable allmulti here, but only if allmulti is not455 * still enabled for the netdev456 */457 if (!(vsi->current_netdev_flags & IFF_ALLMULTI)) {458 err = ice_clear_promisc(vsi,459 ICE_MCAST_PROMISC_BITS);460 if (err) {461 netdev_err(netdev, "Error %d clearing multicast promiscuous on VSI %i\n",462 err, vsi->vsi_num);463 }464 }465 }466 }467 goto exit;468 469out_promisc:470 set_bit(ICE_VSI_PROMISC_CHANGED, vsi->state);471 goto exit;472out:473 /* if something went wrong then set the changed flag so we try again */474 set_bit(ICE_VSI_UMAC_FLTR_CHANGED, vsi->state);475 set_bit(ICE_VSI_MMAC_FLTR_CHANGED, vsi->state);476exit:477 clear_bit(ICE_CFG_BUSY, vsi->state);478 return err;479}480 481/**482 * ice_sync_fltr_subtask - Sync the VSI filter list with HW483 * @pf: board private structure484 */485static void ice_sync_fltr_subtask(struct ice_pf *pf)486{487 int v;488 489 if (!pf || !(test_bit(ICE_FLAG_FLTR_SYNC, pf->flags)))490 return;491 492 clear_bit(ICE_FLAG_FLTR_SYNC, pf->flags);493 494 ice_for_each_vsi(pf, v)495 if (pf->vsi[v] && ice_vsi_fltr_changed(pf->vsi[v]) &&496 ice_vsi_sync_fltr(pf->vsi[v])) {497 /* come back and try again later */498 set_bit(ICE_FLAG_FLTR_SYNC, pf->flags);499 break;500 }501}502 503/**504 * ice_pf_dis_all_vsi - Pause all VSIs on a PF505 * @pf: the PF506 * @locked: is the rtnl_lock already held507 */508static void ice_pf_dis_all_vsi(struct ice_pf *pf, bool locked)509{510 int node;511 int v;512 513 ice_for_each_vsi(pf, v)514 if (pf->vsi[v])515 ice_dis_vsi(pf->vsi[v], locked);516 517 for (node = 0; node < ICE_MAX_PF_AGG_NODES; node++)518 pf->pf_agg_node[node].num_vsis = 0;519 520 for (node = 0; node < ICE_MAX_VF_AGG_NODES; node++)521 pf->vf_agg_node[node].num_vsis = 0;522}523 524/**525 * ice_prepare_for_reset - prep for reset526 * @pf: board private structure527 * @reset_type: reset type requested528 *529 * Inform or close all dependent features in prep for reset.530 */531static void532ice_prepare_for_reset(struct ice_pf *pf, enum ice_reset_req reset_type)533{534 struct ice_hw *hw = &pf->hw;535 struct ice_vsi *vsi;536 struct ice_vf *vf;537 unsigned int bkt;538 539 dev_dbg(ice_pf_to_dev(pf), "reset_type=%d\n", reset_type);540 541 /* already prepared for reset */542 if (test_bit(ICE_PREPARED_FOR_RESET, pf->state))543 return;544 545 synchronize_irq(pf->oicr_irq.virq);546 547 ice_unplug_aux_dev(pf);548 549 /* Notify VFs of impending reset */550 if (ice_check_sq_alive(hw, &hw->mailboxq))551 ice_vc_notify_reset(pf);552 553 /* Disable VFs until reset is completed */554 mutex_lock(&pf->vfs.table_lock);555 ice_for_each_vf(pf, bkt, vf)556 ice_set_vf_state_dis(vf);557 mutex_unlock(&pf->vfs.table_lock);558 559 if (ice_is_eswitch_mode_switchdev(pf)) {560 rtnl_lock();561 ice_eswitch_br_fdb_flush(pf->eswitch.br_offloads->bridge);562 rtnl_unlock();563 }564 565 /* release ADQ specific HW and SW resources */566 vsi = ice_get_main_vsi(pf);567 if (!vsi)568 goto skip;569 570 /* to be on safe side, reset orig_rss_size so that normal flow571 * of deciding rss_size can take precedence572 */573 vsi->orig_rss_size = 0;574 575 if (test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) {576 if (reset_type == ICE_RESET_PFR) {577 vsi->old_ena_tc = vsi->all_enatc;578 vsi->old_numtc = vsi->all_numtc;579 } else {580 ice_remove_q_channels(vsi, true);581 582 /* for other reset type, do not support channel rebuild583 * hence reset needed info584 */585 vsi->old_ena_tc = 0;586 vsi->all_enatc = 0;587 vsi->old_numtc = 0;588 vsi->all_numtc = 0;589 vsi->req_txq = 0;590 vsi->req_rxq = 0;591 clear_bit(ICE_FLAG_TC_MQPRIO, pf->flags);592 memset(&vsi->mqprio_qopt, 0, sizeof(vsi->mqprio_qopt));593 }594 }595 596 if (vsi->netdev)597 netif_device_detach(vsi->netdev);598skip:599 600 /* clear SW filtering DB */601 ice_clear_hw_tbls(hw);602 /* disable the VSIs and their queues that are not already DOWN */603 set_bit(ICE_VSI_REBUILD_PENDING, ice_get_main_vsi(pf)->state);604 ice_pf_dis_all_vsi(pf, false);605 606 if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags))607 ice_ptp_prepare_for_reset(pf, reset_type);608 609 if (ice_is_feature_supported(pf, ICE_F_GNSS))610 ice_gnss_exit(pf);611 612 if (hw->port_info)613 ice_sched_clear_port(hw->port_info);614 615 ice_shutdown_all_ctrlq(hw, false);616 617 set_bit(ICE_PREPARED_FOR_RESET, pf->state);618}619 620/**621 * ice_do_reset - Initiate one of many types of resets622 * @pf: board private structure623 * @reset_type: reset type requested before this function was called.624 */625static void ice_do_reset(struct ice_pf *pf, enum ice_reset_req reset_type)626{627 struct device *dev = ice_pf_to_dev(pf);628 struct ice_hw *hw = &pf->hw;629 630 dev_dbg(dev, "reset_type 0x%x requested\n", reset_type);631 632 if (pf->lag && pf->lag->bonded && reset_type == ICE_RESET_PFR) {633 dev_dbg(dev, "PFR on a bonded interface, promoting to CORER\n");634 reset_type = ICE_RESET_CORER;635 }636 637 ice_prepare_for_reset(pf, reset_type);638 639 /* trigger the reset */640 if (ice_reset(hw, reset_type)) {641 dev_err(dev, "reset %d failed\n", reset_type);642 set_bit(ICE_RESET_FAILED, pf->state);643 clear_bit(ICE_RESET_OICR_RECV, pf->state);644 clear_bit(ICE_PREPARED_FOR_RESET, pf->state);645 clear_bit(ICE_PFR_REQ, pf->state);646 clear_bit(ICE_CORER_REQ, pf->state);647 clear_bit(ICE_GLOBR_REQ, pf->state);648 wake_up(&pf->reset_wait_queue);649 return;650 }651 652 /* PFR is a bit of a special case because it doesn't result in an OICR653 * interrupt. So for PFR, rebuild after the reset and clear the reset-654 * associated state bits.655 */656 if (reset_type == ICE_RESET_PFR) {657 pf->pfr_count++;658 ice_rebuild(pf, reset_type);659 clear_bit(ICE_PREPARED_FOR_RESET, pf->state);660 clear_bit(ICE_PFR_REQ, pf->state);661 wake_up(&pf->reset_wait_queue);662 ice_reset_all_vfs(pf);663 }664}665 666/**667 * ice_reset_subtask - Set up for resetting the device and driver668 * @pf: board private structure669 */670static void ice_reset_subtask(struct ice_pf *pf)671{672 enum ice_reset_req reset_type = ICE_RESET_INVAL;673 674 /* When a CORER/GLOBR/EMPR is about to happen, the hardware triggers an675 * OICR interrupt. The OICR handler (ice_misc_intr) determines what type676 * of reset is pending and sets bits in pf->state indicating the reset677 * type and ICE_RESET_OICR_RECV. So, if the latter bit is set678 * prepare for pending reset if not already (for PF software-initiated679 * global resets the software should already be prepared for it as680 * indicated by ICE_PREPARED_FOR_RESET; for global resets initiated681 * by firmware or software on other PFs, that bit is not set so prepare682 * for the reset now), poll for reset done, rebuild and return.683 */684 if (test_bit(ICE_RESET_OICR_RECV, pf->state)) {685 /* Perform the largest reset requested */686 if (test_and_clear_bit(ICE_CORER_RECV, pf->state))687 reset_type = ICE_RESET_CORER;688 if (test_and_clear_bit(ICE_GLOBR_RECV, pf->state))689 reset_type = ICE_RESET_GLOBR;690 if (test_and_clear_bit(ICE_EMPR_RECV, pf->state))691 reset_type = ICE_RESET_EMPR;692 /* return if no valid reset type requested */693 if (reset_type == ICE_RESET_INVAL)694 return;695 ice_prepare_for_reset(pf, reset_type);696 697 /* make sure we are ready to rebuild */698 if (ice_check_reset(&pf->hw)) {699 set_bit(ICE_RESET_FAILED, pf->state);700 } else {701 /* done with reset. start rebuild */702 pf->hw.reset_ongoing = false;703 ice_rebuild(pf, reset_type);704 /* clear bit to resume normal operations, but705 * ICE_NEEDS_RESTART bit is set in case rebuild failed706 */707 clear_bit(ICE_RESET_OICR_RECV, pf->state);708 clear_bit(ICE_PREPARED_FOR_RESET, pf->state);709 clear_bit(ICE_PFR_REQ, pf->state);710 clear_bit(ICE_CORER_REQ, pf->state);711 clear_bit(ICE_GLOBR_REQ, pf->state);712 wake_up(&pf->reset_wait_queue);713 ice_reset_all_vfs(pf);714 }715 716 return;717 }718 719 /* No pending resets to finish processing. Check for new resets */720 if (test_bit(ICE_PFR_REQ, pf->state)) {721 reset_type = ICE_RESET_PFR;722 if (pf->lag && pf->lag->bonded) {723 dev_dbg(ice_pf_to_dev(pf), "PFR on a bonded interface, promoting to CORER\n");724 reset_type = ICE_RESET_CORER;725 }726 }727 if (test_bit(ICE_CORER_REQ, pf->state))728 reset_type = ICE_RESET_CORER;729 if (test_bit(ICE_GLOBR_REQ, pf->state))730 reset_type = ICE_RESET_GLOBR;731 /* If no valid reset type requested just return */732 if (reset_type == ICE_RESET_INVAL)733 return;734 735 /* reset if not already down or busy */736 if (!test_bit(ICE_DOWN, pf->state) &&737 !test_bit(ICE_CFG_BUSY, pf->state)) {738 ice_do_reset(pf, reset_type);739 }740}741 742/**743 * ice_print_topo_conflict - print topology conflict message744 * @vsi: the VSI whose topology status is being checked745 */746static void ice_print_topo_conflict(struct ice_vsi *vsi)747{748 switch (vsi->port_info->phy.link_info.topo_media_conflict) {749 case ICE_AQ_LINK_TOPO_CONFLICT:750 case ICE_AQ_LINK_MEDIA_CONFLICT:751 case ICE_AQ_LINK_TOPO_UNREACH_PRT:752 case ICE_AQ_LINK_TOPO_UNDRUTIL_PRT:753 case ICE_AQ_LINK_TOPO_UNDRUTIL_MEDIA:754 netdev_info(vsi->netdev, "Potential misconfiguration of the Ethernet port detected. If it was not intended, please use the Intel (R) Ethernet Port Configuration Tool to address the issue.\n");755 break;756 case ICE_AQ_LINK_TOPO_UNSUPP_MEDIA:757 if (test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, vsi->back->flags))758 netdev_warn(vsi->netdev, "An unsupported module type was detected. Refer to the Intel(R) Ethernet Adapters and Devices User Guide for a list of supported modules\n");759 else760 netdev_err(vsi->netdev, "Rx/Tx is disabled on this device because an unsupported module type was detected. Refer to the Intel(R) Ethernet Adapters and Devices User Guide for a list of supported modules.\n");761 break;762 default:763 break;764 }765}766 767/**768 * ice_print_link_msg - print link up or down message769 * @vsi: the VSI whose link status is being queried770 * @isup: boolean for if the link is now up or down771 */772void ice_print_link_msg(struct ice_vsi *vsi, bool isup)773{774 struct ice_aqc_get_phy_caps_data *caps;775 const char *an_advertised;776 const char *fec_req;777 const char *speed;778 const char *fec;779 const char *fc;780 const char *an;781 int status;782 783 if (!vsi)784 return;785 786 if (vsi->current_isup == isup)787 return;788 789 vsi->current_isup = isup;790 791 if (!isup) {792 netdev_info(vsi->netdev, "NIC Link is Down\n");793 return;794 }795 796 switch (vsi->port_info->phy.link_info.link_speed) {797 case ICE_AQ_LINK_SPEED_200GB:798 speed = "200 G";799 break;800 case ICE_AQ_LINK_SPEED_100GB:801 speed = "100 G";802 break;803 case ICE_AQ_LINK_SPEED_50GB:804 speed = "50 G";805 break;806 case ICE_AQ_LINK_SPEED_40GB:807 speed = "40 G";808 break;809 case ICE_AQ_LINK_SPEED_25GB:810 speed = "25 G";811 break;812 case ICE_AQ_LINK_SPEED_20GB:813 speed = "20 G";814 break;815 case ICE_AQ_LINK_SPEED_10GB:816 speed = "10 G";817 break;818 case ICE_AQ_LINK_SPEED_5GB:819 speed = "5 G";820 break;821 case ICE_AQ_LINK_SPEED_2500MB:822 speed = "2.5 G";823 break;824 case ICE_AQ_LINK_SPEED_1000MB:825 speed = "1 G";826 break;827 case ICE_AQ_LINK_SPEED_100MB:828 speed = "100 M";829 break;830 default:831 speed = "Unknown ";832 break;833 }834 835 switch (vsi->port_info->fc.current_mode) {836 case ICE_FC_FULL:837 fc = "Rx/Tx";838 break;839 case ICE_FC_TX_PAUSE:840 fc = "Tx";841 break;842 case ICE_FC_RX_PAUSE:843 fc = "Rx";844 break;845 case ICE_FC_NONE:846 fc = "None";847 break;848 default:849 fc = "Unknown";850 break;851 }852 853 /* Get FEC mode based on negotiated link info */854 switch (vsi->port_info->phy.link_info.fec_info) {855 case ICE_AQ_LINK_25G_RS_528_FEC_EN:856 case ICE_AQ_LINK_25G_RS_544_FEC_EN:857 fec = "RS-FEC";858 break;859 case ICE_AQ_LINK_25G_KR_FEC_EN:860 fec = "FC-FEC/BASE-R";861 break;862 default:863 fec = "NONE";864 break;865 }866 867 /* check if autoneg completed, might be false due to not supported */868 if (vsi->port_info->phy.link_info.an_info & ICE_AQ_AN_COMPLETED)869 an = "True";870 else871 an = "False";872 873 /* Get FEC mode requested based on PHY caps last SW configuration */874 caps = kzalloc(sizeof(*caps), GFP_KERNEL);875 if (!caps) {876 fec_req = "Unknown";877 an_advertised = "Unknown";878 goto done;879 }880 881 status = ice_aq_get_phy_caps(vsi->port_info, false,882 ICE_AQC_REPORT_ACTIVE_CFG, caps, NULL);883 if (status)884 netdev_info(vsi->netdev, "Get phy capability failed.\n");885 886 an_advertised = ice_is_phy_caps_an_enabled(caps) ? "On" : "Off";887 888 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ ||889 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ)890 fec_req = "RS-FEC";891 else if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ ||892 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ)893 fec_req = "FC-FEC/BASE-R";894 else895 fec_req = "NONE";896 897 kfree(caps);898 899done:900 netdev_info(vsi->netdev, "NIC Link is up %sbps Full Duplex, Requested FEC: %s, Negotiated FEC: %s, Autoneg Advertised: %s, Autoneg Negotiated: %s, Flow Control: %s\n",901 speed, fec_req, fec, an_advertised, an, fc);902 ice_print_topo_conflict(vsi);903}904 905/**906 * ice_vsi_link_event - update the VSI's netdev907 * @vsi: the VSI on which the link event occurred908 * @link_up: whether or not the VSI needs to be set up or down909 */910static void ice_vsi_link_event(struct ice_vsi *vsi, bool link_up)911{912 if (!vsi)913 return;914 915 if (test_bit(ICE_VSI_DOWN, vsi->state) || !vsi->netdev)916 return;917 918 if (vsi->type == ICE_VSI_PF) {919 if (link_up == netif_carrier_ok(vsi->netdev))920 return;921 922 if (link_up) {923 netif_carrier_on(vsi->netdev);924 netif_tx_wake_all_queues(vsi->netdev);925 } else {926 netif_carrier_off(vsi->netdev);927 netif_tx_stop_all_queues(vsi->netdev);928 }929 }930}931 932/**933 * ice_set_dflt_mib - send a default config MIB to the FW934 * @pf: private PF struct935 *936 * This function sends a default configuration MIB to the FW.937 *938 * If this function errors out at any point, the driver is still able to939 * function. The main impact is that LFC may not operate as expected.940 * Therefore an error state in this function should be treated with a DBG941 * message and continue on with driver rebuild/reenable.942 */943static void ice_set_dflt_mib(struct ice_pf *pf)944{945 struct device *dev = ice_pf_to_dev(pf);946 u8 mib_type, *buf, *lldpmib = NULL;947 u16 len, typelen, offset = 0;948 struct ice_lldp_org_tlv *tlv;949 struct ice_hw *hw = &pf->hw;950 u32 ouisubtype;951 952 mib_type = SET_LOCAL_MIB_TYPE_LOCAL_MIB;953 lldpmib = kzalloc(ICE_LLDPDU_SIZE, GFP_KERNEL);954 if (!lldpmib) {955 dev_dbg(dev, "%s Failed to allocate MIB memory\n",956 __func__);957 return;958 }959 960 /* Add ETS CFG TLV */961 tlv = (struct ice_lldp_org_tlv *)lldpmib;962 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |963 ICE_IEEE_ETS_TLV_LEN);964 tlv->typelen = htons(typelen);965 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |966 ICE_IEEE_SUBTYPE_ETS_CFG);967 tlv->ouisubtype = htonl(ouisubtype);968 969 buf = tlv->tlvinfo;970 buf[0] = 0;971 972 /* ETS CFG all UPs map to TC 0. Next 4 (1 - 4) Octets = 0.973 * Octets 5 - 12 are BW values, set octet 5 to 100% BW.974 * Octets 13 - 20 are TSA values - leave as zeros975 */976 buf[5] = 0x64;977 len = FIELD_GET(ICE_LLDP_TLV_LEN_M, typelen);978 offset += len + 2;979 tlv = (struct ice_lldp_org_tlv *)980 ((char *)tlv + sizeof(tlv->typelen) + len);981 982 /* Add ETS REC TLV */983 buf = tlv->tlvinfo;984 tlv->typelen = htons(typelen);985 986 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |987 ICE_IEEE_SUBTYPE_ETS_REC);988 tlv->ouisubtype = htonl(ouisubtype);989 990 /* First octet of buf is reserved991 * Octets 1 - 4 map UP to TC - all UPs map to zero992 * Octets 5 - 12 are BW values - set TC 0 to 100%.993 * Octets 13 - 20 are TSA value - leave as zeros994 */995 buf[5] = 0x64;996 offset += len + 2;997 tlv = (struct ice_lldp_org_tlv *)998 ((char *)tlv + sizeof(tlv->typelen) + len);999 1000 /* Add PFC CFG TLV */1001 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |1002 ICE_IEEE_PFC_TLV_LEN);1003 tlv->typelen = htons(typelen);1004 1005 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |1006 ICE_IEEE_SUBTYPE_PFC_CFG);1007 tlv->ouisubtype = htonl(ouisubtype);1008 1009 /* Octet 1 left as all zeros - PFC disabled */1010 buf[0] = 0x08;1011 len = FIELD_GET(ICE_LLDP_TLV_LEN_M, typelen);1012 offset += len + 2;1013 1014 if (ice_aq_set_lldp_mib(hw, mib_type, (void *)lldpmib, offset, NULL))1015 dev_dbg(dev, "%s Failed to set default LLDP MIB\n", __func__);1016 1017 kfree(lldpmib);1018}1019 1020/**1021 * ice_check_phy_fw_load - check if PHY FW load failed1022 * @pf: pointer to PF struct1023 * @link_cfg_err: bitmap from the link info structure1024 *1025 * check if external PHY FW load failed and print an error message if it did1026 */1027static void ice_check_phy_fw_load(struct ice_pf *pf, u8 link_cfg_err)1028{1029 if (!(link_cfg_err & ICE_AQ_LINK_EXTERNAL_PHY_LOAD_FAILURE)) {1030 clear_bit(ICE_FLAG_PHY_FW_LOAD_FAILED, pf->flags);1031 return;1032 }1033 1034 if (test_bit(ICE_FLAG_PHY_FW_LOAD_FAILED, pf->flags))1035 return;1036 1037 if (link_cfg_err & ICE_AQ_LINK_EXTERNAL_PHY_LOAD_FAILURE) {1038 dev_err(ice_pf_to_dev(pf), "Device failed to load the FW for the external PHY. Please download and install the latest NVM for your device and try again\n");1039 set_bit(ICE_FLAG_PHY_FW_LOAD_FAILED, pf->flags);1040 }1041}1042 1043/**1044 * ice_check_module_power1045 * @pf: pointer to PF struct1046 * @link_cfg_err: bitmap from the link info structure1047 *1048 * check module power level returned by a previous call to aq_get_link_info1049 * and print error messages if module power level is not supported1050 */1051static void ice_check_module_power(struct ice_pf *pf, u8 link_cfg_err)1052{1053 /* if module power level is supported, clear the flag */1054 if (!(link_cfg_err & (ICE_AQ_LINK_INVAL_MAX_POWER_LIMIT |1055 ICE_AQ_LINK_MODULE_POWER_UNSUPPORTED))) {1056 clear_bit(ICE_FLAG_MOD_POWER_UNSUPPORTED, pf->flags);1057 return;1058 }1059 1060 /* if ICE_FLAG_MOD_POWER_UNSUPPORTED was previously set and the1061 * above block didn't clear this bit, there's nothing to do1062 */1063 if (test_bit(ICE_FLAG_MOD_POWER_UNSUPPORTED, pf->flags))1064 return;1065 1066 if (link_cfg_err & ICE_AQ_LINK_INVAL_MAX_POWER_LIMIT) {1067 dev_err(ice_pf_to_dev(pf), "The installed module is incompatible with the device's NVM image. Cannot start link\n");1068 set_bit(ICE_FLAG_MOD_POWER_UNSUPPORTED, pf->flags);1069 } else if (link_cfg_err & ICE_AQ_LINK_MODULE_POWER_UNSUPPORTED) {1070 dev_err(ice_pf_to_dev(pf), "The module's power requirements exceed the device's power supply. Cannot start link\n");1071 set_bit(ICE_FLAG_MOD_POWER_UNSUPPORTED, pf->flags);1072 }1073}1074 1075/**1076 * ice_check_link_cfg_err - check if link configuration failed1077 * @pf: pointer to the PF struct1078 * @link_cfg_err: bitmap from the link info structure1079 *1080 * print if any link configuration failure happens due to the value in the1081 * link_cfg_err parameter in the link info structure1082 */1083static void ice_check_link_cfg_err(struct ice_pf *pf, u8 link_cfg_err)1084{1085 ice_check_module_power(pf, link_cfg_err);1086 ice_check_phy_fw_load(pf, link_cfg_err);1087}1088 1089/**1090 * ice_link_event - process the link event1091 * @pf: PF that the link event is associated with1092 * @pi: port_info for the port that the link event is associated with1093 * @link_up: true if the physical link is up and false if it is down1094 * @link_speed: current link speed received from the link event1095 *1096 * Returns 0 on success and negative on failure1097 */1098static int1099ice_link_event(struct ice_pf *pf, struct ice_port_info *pi, bool link_up,1100 u16 link_speed)1101{1102 struct device *dev = ice_pf_to_dev(pf);1103 struct ice_phy_info *phy_info;1104 struct ice_vsi *vsi;1105 u16 old_link_speed;1106 bool old_link;1107 int status;1108 1109 phy_info = &pi->phy;1110 phy_info->link_info_old = phy_info->link_info;1111 1112 old_link = !!(phy_info->link_info_old.link_info & ICE_AQ_LINK_UP);1113 old_link_speed = phy_info->link_info_old.link_speed;1114 1115 /* update the link info structures and re-enable link events,1116 * don't bail on failure due to other book keeping needed1117 */1118 status = ice_update_link_info(pi);1119 if (status)1120 dev_dbg(dev, "Failed to update link status on port %d, err %d aq_err %s\n",1121 pi->lport, status,1122 ice_aq_str(pi->hw->adminq.sq_last_status));1123 1124 ice_check_link_cfg_err(pf, pi->phy.link_info.link_cfg_err);1125 1126 /* Check if the link state is up after updating link info, and treat1127 * this event as an UP event since the link is actually UP now.1128 */1129 if (phy_info->link_info.link_info & ICE_AQ_LINK_UP)1130 link_up = true;1131 1132 vsi = ice_get_main_vsi(pf);1133 if (!vsi || !vsi->port_info)1134 return -EINVAL;1135 1136 /* turn off PHY if media was removed */1137 if (!test_bit(ICE_FLAG_NO_MEDIA, pf->flags) &&1138 !(pi->phy.link_info.link_info & ICE_AQ_MEDIA_AVAILABLE)) {1139 set_bit(ICE_FLAG_NO_MEDIA, pf->flags);1140 ice_set_link(vsi, false);1141 }1142 1143 /* if the old link up/down and speed is the same as the new */1144 if (link_up == old_link && link_speed == old_link_speed)1145 return 0;1146 1147 ice_ptp_link_change(pf, pf->hw.pf_id, link_up);1148 1149 if (ice_is_dcb_active(pf)) {1150 if (test_bit(ICE_FLAG_DCB_ENA, pf->flags))1151 ice_dcb_rebuild(pf);1152 } else {1153 if (link_up)1154 ice_set_dflt_mib(pf);1155 }1156 ice_vsi_link_event(vsi, link_up);1157 ice_print_link_msg(vsi, link_up);1158 1159 ice_vc_notify_link_state(pf);1160 1161 return 0;1162}1163 1164/**1165 * ice_watchdog_subtask - periodic tasks not using event driven scheduling1166 * @pf: board private structure1167 */1168static void ice_watchdog_subtask(struct ice_pf *pf)1169{1170 int i;1171 1172 /* if interface is down do nothing */1173 if (test_bit(ICE_DOWN, pf->state) ||1174 test_bit(ICE_CFG_BUSY, pf->state))1175 return;1176 1177 /* make sure we don't do these things too often */1178 if (time_before(jiffies,1179 pf->serv_tmr_prev + pf->serv_tmr_period))1180 return;1181 1182 pf->serv_tmr_prev = jiffies;1183 1184 /* Update the stats for active netdevs so the network stack1185 * can look at updated numbers whenever it cares to1186 */1187 ice_update_pf_stats(pf);1188 ice_for_each_vsi(pf, i)1189 if (pf->vsi[i] && pf->vsi[i]->netdev)1190 ice_update_vsi_stats(pf->vsi[i]);1191}1192 1193/**1194 * ice_init_link_events - enable/initialize link events1195 * @pi: pointer to the port_info instance1196 *1197 * Returns -EIO on failure, 0 on success1198 */1199static int ice_init_link_events(struct ice_port_info *pi)1200{1201 u16 mask;1202 1203 mask = ~((u16)(ICE_AQ_LINK_EVENT_UPDOWN | ICE_AQ_LINK_EVENT_MEDIA_NA |1204 ICE_AQ_LINK_EVENT_MODULE_QUAL_FAIL |1205 ICE_AQ_LINK_EVENT_PHY_FW_LOAD_FAIL));1206 1207 if (ice_aq_set_event_mask(pi->hw, pi->lport, mask, NULL)) {1208 dev_dbg(ice_hw_to_dev(pi->hw), "Failed to set link event mask for port %d\n",1209 pi->lport);1210 return -EIO;1211 }1212 1213 if (ice_aq_get_link_info(pi, true, NULL, NULL)) {1214 dev_dbg(ice_hw_to_dev(pi->hw), "Failed to enable link events for port %d\n",1215 pi->lport);1216 return -EIO;1217 }1218 1219 return 0;1220}1221 1222/**1223 * ice_handle_link_event - handle link event via ARQ1224 * @pf: PF that the link event is associated with1225 * @event: event structure containing link status info1226 */1227static int1228ice_handle_link_event(struct ice_pf *pf, struct ice_rq_event_info *event)1229{1230 struct ice_aqc_get_link_status_data *link_data;1231 struct ice_port_info *port_info;1232 int status;1233 1234 link_data = (struct ice_aqc_get_link_status_data *)event->msg_buf;1235 port_info = pf->hw.port_info;1236 if (!port_info)1237 return -EINVAL;1238 1239 status = ice_link_event(pf, port_info,1240 !!(link_data->link_info & ICE_AQ_LINK_UP),1241 le16_to_cpu(link_data->link_speed));1242 if (status)1243 dev_dbg(ice_pf_to_dev(pf), "Could not process link event, error %d\n",1244 status);1245 1246 return status;1247}1248 1249/**1250 * ice_get_fwlog_data - copy the FW log data from ARQ event1251 * @pf: PF that the FW log event is associated with1252 * @event: event structure containing FW log data1253 */1254static void1255ice_get_fwlog_data(struct ice_pf *pf, struct ice_rq_event_info *event)1256{1257 struct ice_fwlog_data *fwlog;1258 struct ice_hw *hw = &pf->hw;1259 1260 fwlog = &hw->fwlog_ring.rings[hw->fwlog_ring.tail];1261 1262 memset(fwlog->data, 0, PAGE_SIZE);1263 fwlog->data_size = le16_to_cpu(event->desc.datalen);1264 1265 memcpy(fwlog->data, event->msg_buf, fwlog->data_size);1266 ice_fwlog_ring_increment(&hw->fwlog_ring.tail, hw->fwlog_ring.size);1267 1268 if (ice_fwlog_ring_full(&hw->fwlog_ring)) {1269 /* the rings are full so bump the head to create room */1270 ice_fwlog_ring_increment(&hw->fwlog_ring.head,1271 hw->fwlog_ring.size);1272 }1273}1274 1275/**1276 * ice_aq_prep_for_event - Prepare to wait for an AdminQ event from firmware1277 * @pf: pointer to the PF private structure1278 * @task: intermediate helper storage and identifier for waiting1279 * @opcode: the opcode to wait for1280 *1281 * Prepares to wait for a specific AdminQ completion event on the ARQ for1282 * a given PF. Actual wait would be done by a call to ice_aq_wait_for_event().1283 *1284 * Calls are separated to allow caller registering for event before sending1285 * the command, which mitigates a race between registering and FW responding.1286 *1287 * To obtain only the descriptor contents, pass an task->event with null1288 * msg_buf. If the complete data buffer is desired, allocate the1289 * task->event.msg_buf with enough space ahead of time.1290 */1291void ice_aq_prep_for_event(struct ice_pf *pf, struct ice_aq_task *task,1292 u16 opcode)1293{1294 INIT_HLIST_NODE(&task->entry);1295 task->opcode = opcode;1296 task->state = ICE_AQ_TASK_WAITING;1297 1298 spin_lock_bh(&pf->aq_wait_lock);1299 hlist_add_head(&task->entry, &pf->aq_wait_list);1300 spin_unlock_bh(&pf->aq_wait_lock);1301}1302 1303/**1304 * ice_aq_wait_for_event - Wait for an AdminQ event from firmware1305 * @pf: pointer to the PF private structure1306 * @task: ptr prepared by ice_aq_prep_for_event()1307 * @timeout: how long to wait, in jiffies1308 *1309 * Waits for a specific AdminQ completion event on the ARQ for a given PF. The1310 * current thread will be put to sleep until the specified event occurs or1311 * until the given timeout is reached.1312 *1313 * Returns: zero on success, or a negative error code on failure.1314 */1315int ice_aq_wait_for_event(struct ice_pf *pf, struct ice_aq_task *task,1316 unsigned long timeout)1317{1318 enum ice_aq_task_state *state = &task->state;1319 struct device *dev = ice_pf_to_dev(pf);1320 unsigned long start = jiffies;1321 long ret;1322 int err;1323 1324 ret = wait_event_interruptible_timeout(pf->aq_wait_queue,1325 *state != ICE_AQ_TASK_WAITING,1326 timeout);1327 switch (*state) {1328 case ICE_AQ_TASK_NOT_PREPARED:1329 WARN(1, "call to %s without ice_aq_prep_for_event()", __func__);1330 err = -EINVAL;1331 break;1332 case ICE_AQ_TASK_WAITING:1333 err = ret < 0 ? ret : -ETIMEDOUT;1334 break;1335 case ICE_AQ_TASK_CANCELED:1336 err = ret < 0 ? ret : -ECANCELED;1337 break;1338 case ICE_AQ_TASK_COMPLETE:1339 err = ret < 0 ? ret : 0;1340 break;1341 default:1342 WARN(1, "Unexpected AdminQ wait task state %u", *state);1343 err = -EINVAL;1344 break;1345 }1346 1347 dev_dbg(dev, "Waited %u msecs (max %u msecs) for firmware response to op 0x%04x\n",1348 jiffies_to_msecs(jiffies - start),1349 jiffies_to_msecs(timeout),1350 task->opcode);1351 1352 spin_lock_bh(&pf->aq_wait_lock);1353 hlist_del(&task->entry);1354 spin_unlock_bh(&pf->aq_wait_lock);1355 1356 return err;1357}1358 1359/**1360 * ice_aq_check_events - Check if any thread is waiting for an AdminQ event1361 * @pf: pointer to the PF private structure1362 * @opcode: the opcode of the event1363 * @event: the event to check1364 *1365 * Loops over the current list of pending threads waiting for an AdminQ event.1366 * For each matching task, copy the contents of the event into the task1367 * structure and wake up the thread.1368 *1369 * If multiple threads wait for the same opcode, they will all be woken up.1370 *1371 * Note that event->msg_buf will only be duplicated if the event has a buffer1372 * with enough space already allocated. Otherwise, only the descriptor and1373 * message length will be copied.1374 *1375 * Returns: true if an event was found, false otherwise1376 */1377static void ice_aq_check_events(struct ice_pf *pf, u16 opcode,1378 struct ice_rq_event_info *event)1379{1380 struct ice_rq_event_info *task_ev;1381 struct ice_aq_task *task;1382 bool found = false;1383 1384 spin_lock_bh(&pf->aq_wait_lock);1385 hlist_for_each_entry(task, &pf->aq_wait_list, entry) {1386 if (task->state != ICE_AQ_TASK_WAITING)1387 continue;1388 if (task->opcode != opcode)1389 continue;1390 1391 task_ev = &task->event;1392 memcpy(&task_ev->desc, &event->desc, sizeof(event->desc));1393 task_ev->msg_len = event->msg_len;1394 1395 /* Only copy the data buffer if a destination was set */1396 if (task_ev->msg_buf && task_ev->buf_len >= event->buf_len) {1397 memcpy(task_ev->msg_buf, event->msg_buf,1398 event->buf_len);1399 task_ev->buf_len = event->buf_len;1400 }1401 1402 task->state = ICE_AQ_TASK_COMPLETE;1403 found = true;1404 }1405 spin_unlock_bh(&pf->aq_wait_lock);1406 1407 if (found)1408 wake_up(&pf->aq_wait_queue);1409}1410 1411/**1412 * ice_aq_cancel_waiting_tasks - Immediately cancel all waiting tasks1413 * @pf: the PF private structure1414 *1415 * Set all waiting tasks to ICE_AQ_TASK_CANCELED, and wake up their threads.1416 * This will then cause ice_aq_wait_for_event to exit with -ECANCELED.1417 */1418static void ice_aq_cancel_waiting_tasks(struct ice_pf *pf)1419{1420 struct ice_aq_task *task;1421 1422 spin_lock_bh(&pf->aq_wait_lock);1423 hlist_for_each_entry(task, &pf->aq_wait_list, entry)1424 task->state = ICE_AQ_TASK_CANCELED;1425 spin_unlock_bh(&pf->aq_wait_lock);1426 1427 wake_up(&pf->aq_wait_queue);1428}1429 1430#define ICE_MBX_OVERFLOW_WATERMARK 641431 1432/**1433 * __ice_clean_ctrlq - helper function to clean controlq rings1434 * @pf: ptr to struct ice_pf1435 * @q_type: specific Control queue type1436 */1437static int __ice_clean_ctrlq(struct ice_pf *pf, enum ice_ctl_q q_type)1438{1439 struct device *dev = ice_pf_to_dev(pf);1440 struct ice_rq_event_info event;1441 struct ice_hw *hw = &pf->hw;1442 struct ice_ctl_q_info *cq;1443 u16 pending, i = 0;1444 const char *qtype;1445 u32 oldval, val;1446 1447 /* Do not clean control queue if/when PF reset fails */1448 if (test_bit(ICE_RESET_FAILED, pf->state))1449 return 0;1450 1451 switch (q_type) {1452 case ICE_CTL_Q_ADMIN:1453 cq = &hw->adminq;1454 qtype = "Admin";1455 break;1456 case ICE_CTL_Q_SB:1457 cq = &hw->sbq;1458 qtype = "Sideband";1459 break;1460 case ICE_CTL_Q_MAILBOX:1461 cq = &hw->mailboxq;1462 qtype = "Mailbox";1463 /* we are going to try to detect a malicious VF, so set the1464 * state to begin detection1465 */1466 hw->mbx_snapshot.mbx_buf.state = ICE_MAL_VF_DETECT_STATE_NEW_SNAPSHOT;1467 break;1468 default:1469 dev_warn(dev, "Unknown control queue type 0x%x\n", q_type);1470 return 0;1471 }1472 1473 /* check for error indications - PF_xx_AxQLEN register layout for1474 * FW/MBX/SB are identical so just use defines for PF_FW_AxQLEN.1475 */1476 val = rd32(hw, cq->rq.len);1477 if (val & (PF_FW_ARQLEN_ARQVFE_M | PF_FW_ARQLEN_ARQOVFL_M |1478 PF_FW_ARQLEN_ARQCRIT_M)) {1479 oldval = val;1480 if (val & PF_FW_ARQLEN_ARQVFE_M)1481 dev_dbg(dev, "%s Receive Queue VF Error detected\n",1482 qtype);1483 if (val & PF_FW_ARQLEN_ARQOVFL_M) {1484 dev_dbg(dev, "%s Receive Queue Overflow Error detected\n",1485 qtype);1486 }1487 if (val & PF_FW_ARQLEN_ARQCRIT_M)1488 dev_dbg(dev, "%s Receive Queue Critical Error detected\n",1489 qtype);1490 val &= ~(PF_FW_ARQLEN_ARQVFE_M | PF_FW_ARQLEN_ARQOVFL_M |1491 PF_FW_ARQLEN_ARQCRIT_M);1492 if (oldval != val)1493 wr32(hw, cq->rq.len, val);1494 }1495 1496 val = rd32(hw, cq->sq.len);1497 if (val & (PF_FW_ATQLEN_ATQVFE_M | PF_FW_ATQLEN_ATQOVFL_M |1498 PF_FW_ATQLEN_ATQCRIT_M)) {1499 oldval = val;1500 if (val & PF_FW_ATQLEN_ATQVFE_M)1501 dev_dbg(dev, "%s Send Queue VF Error detected\n",1502 qtype);1503 if (val & PF_FW_ATQLEN_ATQOVFL_M) {1504 dev_dbg(dev, "%s Send Queue Overflow Error detected\n",1505 qtype);1506 }1507 if (val & PF_FW_ATQLEN_ATQCRIT_M)1508 dev_dbg(dev, "%s Send Queue Critical Error detected\n",1509 qtype);1510 val &= ~(PF_FW_ATQLEN_ATQVFE_M | PF_FW_ATQLEN_ATQOVFL_M |1511 PF_FW_ATQLEN_ATQCRIT_M);1512 if (oldval != val)1513 wr32(hw, cq->sq.len, val);1514 }1515 1516 event.buf_len = cq->rq_buf_size;1517 event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL);1518 if (!event.msg_buf)1519 return 0;1520 1521 do {1522 struct ice_mbx_data data = {};1523 u16 opcode;1524 int ret;1525 1526 ret = ice_clean_rq_elem(hw, cq, &event, &pending);1527 if (ret == -EALREADY)1528 break;1529 if (ret) {1530 dev_err(dev, "%s Receive Queue event error %d\n", qtype,1531 ret);1532 break;1533 }1534 1535 opcode = le16_to_cpu(event.desc.opcode);1536 1537 /* Notify any thread that might be waiting for this event */1538 ice_aq_check_events(pf, opcode, &event);1539 1540 switch (opcode) {1541 case ice_aqc_opc_get_link_status:1542 if (ice_handle_link_event(pf, &event))1543 dev_err(dev, "Could not handle link event\n");1544 break;1545 case ice_aqc_opc_event_lan_overflow:1546 ice_vf_lan_overflow_event(pf, &event);1547 break;1548 case ice_mbx_opc_send_msg_to_pf:1549 data.num_msg_proc = i;1550 data.num_pending_arq = pending;1551 data.max_num_msgs_mbx = hw->mailboxq.num_rq_entries;1552 data.async_watermark_val = ICE_MBX_OVERFLOW_WATERMARK;1553 1554 ice_vc_process_vf_msg(pf, &event, &data);1555 break;1556 case ice_aqc_opc_fw_logs_event:1557 ice_get_fwlog_data(pf, &event);1558 break;1559 case ice_aqc_opc_lldp_set_mib_change:1560 ice_dcb_process_lldp_set_mib_change(pf, &event);1561 break;1562 default:1563 dev_dbg(dev, "%s Receive Queue unknown event 0x%04x ignored\n",1564 qtype, opcode);1565 break;1566 }1567 } while (pending && (i++ < ICE_DFLT_IRQ_WORK));1568 1569 kfree(event.msg_buf);1570 1571 return pending && (i == ICE_DFLT_IRQ_WORK);1572}1573 1574/**1575 * ice_ctrlq_pending - check if there is a difference between ntc and ntu1576 * @hw: pointer to hardware info1577 * @cq: control queue information1578 *1579 * returns true if there are pending messages in a queue, false if there aren't1580 */1581static bool ice_ctrlq_pending(struct ice_hw *hw, struct ice_ctl_q_info *cq)1582{1583 u16 ntu;1584 1585 ntu = (u16)(rd32(hw, cq->rq.head) & cq->rq.head_mask);1586 return cq->rq.next_to_clean != ntu;1587}1588 1589/**1590 * ice_clean_adminq_subtask - clean the AdminQ rings1591 * @pf: board private structure1592 */1593static void ice_clean_adminq_subtask(struct ice_pf *pf)1594{1595 struct ice_hw *hw = &pf->hw;1596 1597 if (!test_bit(ICE_ADMINQ_EVENT_PENDING, pf->state))1598 return;1599 1600 if (__ice_clean_ctrlq(pf, ICE_CTL_Q_ADMIN))1601 return;1602 1603 clear_bit(ICE_ADMINQ_EVENT_PENDING, pf->state);1604 1605 /* There might be a situation where new messages arrive to a control1606 * queue between processing the last message and clearing the1607 * EVENT_PENDING bit. So before exiting, check queue head again (using1608 * ice_ctrlq_pending) and process new messages if any.1609 */1610 if (ice_ctrlq_pending(hw, &hw->adminq))1611 __ice_clean_ctrlq(pf, ICE_CTL_Q_ADMIN);1612 1613 ice_flush(hw);1614}1615 1616/**1617 * ice_clean_mailboxq_subtask - clean the MailboxQ rings1618 * @pf: board private structure1619 */1620static void ice_clean_mailboxq_subtask(struct ice_pf *pf)1621{1622 struct ice_hw *hw = &pf->hw;1623 1624 if (!test_bit(ICE_MAILBOXQ_EVENT_PENDING, pf->state))1625 return;1626 1627 if (__ice_clean_ctrlq(pf, ICE_CTL_Q_MAILBOX))1628 return;1629 1630 clear_bit(ICE_MAILBOXQ_EVENT_PENDING, pf->state);1631 1632 if (ice_ctrlq_pending(hw, &hw->mailboxq))1633 __ice_clean_ctrlq(pf, ICE_CTL_Q_MAILBOX);1634 1635 ice_flush(hw);1636}1637 1638/**1639 * ice_clean_sbq_subtask - clean the Sideband Queue rings1640 * @pf: board private structure1641 */1642static void ice_clean_sbq_subtask(struct ice_pf *pf)1643{1644 struct ice_hw *hw = &pf->hw;1645 1646 /* if mac_type is not generic, sideband is not supported1647 * and there's nothing to do here1648 */1649 if (!ice_is_generic_mac(hw)) {1650 clear_bit(ICE_SIDEBANDQ_EVENT_PENDING, pf->state);1651 return;1652 }1653 1654 if (!test_bit(ICE_SIDEBANDQ_EVENT_PENDING, pf->state))1655 return;1656 1657 if (__ice_clean_ctrlq(pf, ICE_CTL_Q_SB))1658 return;1659 1660 clear_bit(ICE_SIDEBANDQ_EVENT_PENDING, pf->state);1661 1662 if (ice_ctrlq_pending(hw, &hw->sbq))1663 __ice_clean_ctrlq(pf, ICE_CTL_Q_SB);1664 1665 ice_flush(hw);1666}1667 1668/**1669 * ice_service_task_schedule - schedule the service task to wake up1670 * @pf: board private structure1671 *1672 * If not already scheduled, this puts the task into the work queue.1673 */1674void ice_service_task_schedule(struct ice_pf *pf)1675{1676 if (!test_bit(ICE_SERVICE_DIS, pf->state) &&1677 !test_and_set_bit(ICE_SERVICE_SCHED, pf->state) &&1678 !test_bit(ICE_NEEDS_RESTART, pf->state))1679 queue_work(ice_wq, &pf->serv_task);1680}1681 1682/**1683 * ice_service_task_complete - finish up the service task1684 * @pf: board private structure1685 */1686static void ice_service_task_complete(struct ice_pf *pf)1687{1688 WARN_ON(!test_bit(ICE_SERVICE_SCHED, pf->state));1689 1690 /* force memory (pf->state) to sync before next service task */1691 smp_mb__before_atomic();1692 clear_bit(ICE_SERVICE_SCHED, pf->state);1693}1694 1695/**1696 * ice_service_task_stop - stop service task and cancel works1697 * @pf: board private structure1698 *1699 * Return 0 if the ICE_SERVICE_DIS bit was not already set,1700 * 1 otherwise.1701 */1702static int ice_service_task_stop(struct ice_pf *pf)1703{1704 int ret;1705 1706 ret = test_and_set_bit(ICE_SERVICE_DIS, pf->state);1707 1708 if (pf->serv_tmr.function)1709 del_timer_sync(&pf->serv_tmr);1710 if (pf->serv_task.func)1711 cancel_work_sync(&pf->serv_task);1712 1713 clear_bit(ICE_SERVICE_SCHED, pf->state);1714 return ret;1715}1716 1717/**1718 * ice_service_task_restart - restart service task and schedule works1719 * @pf: board private structure1720 *1721 * This function is needed for suspend and resume works (e.g WoL scenario)1722 */1723static void ice_service_task_restart(struct ice_pf *pf)1724{1725 clear_bit(ICE_SERVICE_DIS, pf->state);1726 ice_service_task_schedule(pf);1727}1728 1729/**1730 * ice_service_timer - timer callback to schedule service task1731 * @t: pointer to timer_list1732 */1733static void ice_service_timer(struct timer_list *t)1734{1735 struct ice_pf *pf = from_timer(pf, t, serv_tmr);1736 1737 mod_timer(&pf->serv_tmr, round_jiffies(pf->serv_tmr_period + jiffies));1738 ice_service_task_schedule(pf);1739}1740 1741/**1742 * ice_mdd_maybe_reset_vf - reset VF after MDD event1743 * @pf: pointer to the PF structure1744 * @vf: pointer to the VF structure1745 * @reset_vf_tx: whether Tx MDD has occurred1746 * @reset_vf_rx: whether Rx MDD has occurred1747 *1748 * Since the queue can get stuck on VF MDD events, the PF can be configured to1749 * automatically reset the VF by enabling the private ethtool flag1750 * mdd-auto-reset-vf.1751 */1752static void ice_mdd_maybe_reset_vf(struct ice_pf *pf, struct ice_vf *vf,1753 bool reset_vf_tx, bool reset_vf_rx)1754{1755 struct device *dev = ice_pf_to_dev(pf);1756 1757 if (!test_bit(ICE_FLAG_MDD_AUTO_RESET_VF, pf->flags))1758 return;1759 1760 /* VF MDD event counters will be cleared by reset, so print the event1761 * prior to reset.1762 */1763 if (reset_vf_tx)1764 ice_print_vf_tx_mdd_event(vf);1765 1766 if (reset_vf_rx)1767 ice_print_vf_rx_mdd_event(vf);1768 1769 dev_info(dev, "PF-to-VF reset on PF %d VF %d due to MDD event\n",1770 pf->hw.pf_id, vf->vf_id);1771 ice_reset_vf(vf, ICE_VF_RESET_NOTIFY | ICE_VF_RESET_LOCK);1772}1773 1774/**1775 * ice_handle_mdd_event - handle malicious driver detect event1776 * @pf: pointer to the PF structure1777 *1778 * Called from service task. OICR interrupt handler indicates MDD event.1779 * VF MDD logging is guarded by net_ratelimit. Additional PF and VF log1780 * messages are wrapped by netif_msg_[rx|tx]_err. Since VF Rx MDD events1781 * disable the queue, the PF can be configured to reset the VF using ethtool1782 * private flag mdd-auto-reset-vf.1783 */1784static void ice_handle_mdd_event(struct ice_pf *pf)1785{1786 struct device *dev = ice_pf_to_dev(pf);1787 struct ice_hw *hw = &pf->hw;1788 struct ice_vf *vf;1789 unsigned int bkt;1790 u32 reg;1791 1792 if (!test_and_clear_bit(ICE_MDD_EVENT_PENDING, pf->state)) {1793 /* Since the VF MDD event logging is rate limited, check if1794 * there are pending MDD events.1795 */1796 ice_print_vfs_mdd_events(pf);1797 return;1798 }1799 1800 /* find what triggered an MDD event */1801 reg = rd32(hw, GL_MDET_TX_PQM);1802 if (reg & GL_MDET_TX_PQM_VALID_M) {1803 u8 pf_num = FIELD_GET(GL_MDET_TX_PQM_PF_NUM_M, reg);1804 u16 vf_num = FIELD_GET(GL_MDET_TX_PQM_VF_NUM_M, reg);1805 u8 event = FIELD_GET(GL_MDET_TX_PQM_MAL_TYPE_M, reg);1806 u16 queue = FIELD_GET(GL_MDET_TX_PQM_QNUM_M, reg);1807 1808 if (netif_msg_tx_err(pf))1809 dev_info(dev, "Malicious Driver Detection event %d on TX queue %d PF# %d VF# %d\n",1810 event, queue, pf_num, vf_num);1811 wr32(hw, GL_MDET_TX_PQM, 0xffffffff);1812 }1813 1814 reg = rd32(hw, GL_MDET_TX_TCLAN_BY_MAC(hw));1815 if (reg & GL_MDET_TX_TCLAN_VALID_M) {1816 u8 pf_num = FIELD_GET(GL_MDET_TX_TCLAN_PF_NUM_M, reg);1817 u16 vf_num = FIELD_GET(GL_MDET_TX_TCLAN_VF_NUM_M, reg);1818 u8 event = FIELD_GET(GL_MDET_TX_TCLAN_MAL_TYPE_M, reg);1819 u16 queue = FIELD_GET(GL_MDET_TX_TCLAN_QNUM_M, reg);1820 1821 if (netif_msg_tx_err(pf))1822 dev_info(dev, "Malicious Driver Detection event %d on TX queue %d PF# %d VF# %d\n",1823 event, queue, pf_num, vf_num);1824 wr32(hw, GL_MDET_TX_TCLAN_BY_MAC(hw), U32_MAX);1825 }1826 1827 reg = rd32(hw, GL_MDET_RX);1828 if (reg & GL_MDET_RX_VALID_M) {1829 u8 pf_num = FIELD_GET(GL_MDET_RX_PF_NUM_M, reg);1830 u16 vf_num = FIELD_GET(GL_MDET_RX_VF_NUM_M, reg);1831 u8 event = FIELD_GET(GL_MDET_RX_MAL_TYPE_M, reg);1832 u16 queue = FIELD_GET(GL_MDET_RX_QNUM_M, reg);1833 1834 if (netif_msg_rx_err(pf))1835 dev_info(dev, "Malicious Driver Detection event %d on RX queue %d PF# %d VF# %d\n",1836 event, queue, pf_num, vf_num);1837 wr32(hw, GL_MDET_RX, 0xffffffff);1838 }1839 1840 /* check to see if this PF caused an MDD event */1841 reg = rd32(hw, PF_MDET_TX_PQM);1842 if (reg & PF_MDET_TX_PQM_VALID_M) {1843 wr32(hw, PF_MDET_TX_PQM, 0xFFFF);1844 if (netif_msg_tx_err(pf))1845 dev_info(dev, "Malicious Driver Detection event TX_PQM detected on PF\n");1846 }1847 1848 reg = rd32(hw, PF_MDET_TX_TCLAN_BY_MAC(hw));1849 if (reg & PF_MDET_TX_TCLAN_VALID_M) {1850 wr32(hw, PF_MDET_TX_TCLAN_BY_MAC(hw), 0xffff);1851 if (netif_msg_tx_err(pf))1852 dev_info(dev, "Malicious Driver Detection event TX_TCLAN detected on PF\n");1853 }1854 1855 reg = rd32(hw, PF_MDET_RX);1856 if (reg & PF_MDET_RX_VALID_M) {1857 wr32(hw, PF_MDET_RX, 0xFFFF);1858 if (netif_msg_rx_err(pf))1859 dev_info(dev, "Malicious Driver Detection event RX detected on PF\n");1860 }1861 1862 /* Check to see if one of the VFs caused an MDD event, and then1863 * increment counters and set print pending1864 */1865 mutex_lock(&pf->vfs.table_lock);1866 ice_for_each_vf(pf, bkt, vf) {1867 bool reset_vf_tx = false, reset_vf_rx = false;1868 1869 reg = rd32(hw, VP_MDET_TX_PQM(vf->vf_id));1870 if (reg & VP_MDET_TX_PQM_VALID_M) {1871 wr32(hw, VP_MDET_TX_PQM(vf->vf_id), 0xFFFF);1872 vf->mdd_tx_events.count++;1873 set_bit(ICE_MDD_VF_PRINT_PENDING, pf->state);1874 if (netif_msg_tx_err(pf))1875 dev_info(dev, "Malicious Driver Detection event TX_PQM detected on VF %d\n",1876 vf->vf_id);1877 1878 reset_vf_tx = true;1879 }1880 1881 reg = rd32(hw, VP_MDET_TX_TCLAN(vf->vf_id));1882 if (reg & VP_MDET_TX_TCLAN_VALID_M) {1883 wr32(hw, VP_MDET_TX_TCLAN(vf->vf_id), 0xFFFF);1884 vf->mdd_tx_events.count++;1885 set_bit(ICE_MDD_VF_PRINT_PENDING, pf->state);1886 if (netif_msg_tx_err(pf))1887 dev_info(dev, "Malicious Driver Detection event TX_TCLAN detected on VF %d\n",1888 vf->vf_id);1889 1890 reset_vf_tx = true;1891 }1892 1893 reg = rd32(hw, VP_MDET_TX_TDPU(vf->vf_id));1894 if (reg & VP_MDET_TX_TDPU_VALID_M) {1895 wr32(hw, VP_MDET_TX_TDPU(vf->vf_id), 0xFFFF);1896 vf->mdd_tx_events.count++;1897 set_bit(ICE_MDD_VF_PRINT_PENDING, pf->state);1898 if (netif_msg_tx_err(pf))1899 dev_info(dev, "Malicious Driver Detection event TX_TDPU detected on VF %d\n",1900 vf->vf_id);1901 1902 reset_vf_tx = true;1903 }1904 1905 reg = rd32(hw, VP_MDET_RX(vf->vf_id));1906 if (reg & VP_MDET_RX_VALID_M) {1907 wr32(hw, VP_MDET_RX(vf->vf_id), 0xFFFF);1908 vf->mdd_rx_events.count++;1909 set_bit(ICE_MDD_VF_PRINT_PENDING, pf->state);1910 if (netif_msg_rx_err(pf))1911 dev_info(dev, "Malicious Driver Detection event RX detected on VF %d\n",1912 vf->vf_id);1913 1914 reset_vf_rx = true;1915 }1916 1917 if (reset_vf_tx || reset_vf_rx)1918 ice_mdd_maybe_reset_vf(pf, vf, reset_vf_tx,1919 reset_vf_rx);1920 }1921 mutex_unlock(&pf->vfs.table_lock);1922 1923 ice_print_vfs_mdd_events(pf);1924}1925 1926/**1927 * ice_force_phys_link_state - Force the physical link state1928 * @vsi: VSI to force the physical link state to up/down1929 * @link_up: true/false indicates to set the physical link to up/down1930 *1931 * Force the physical link state by getting the current PHY capabilities from1932 * hardware and setting the PHY config based on the determined capabilities. If1933 * link changes a link event will be triggered because both the Enable Automatic1934 * Link Update and LESM Enable bits are set when setting the PHY capabilities.1935 *1936 * Returns 0 on success, negative on failure1937 */1938static int ice_force_phys_link_state(struct ice_vsi *vsi, bool link_up)1939{1940 struct ice_aqc_get_phy_caps_data *pcaps;1941 struct ice_aqc_set_phy_cfg_data *cfg;1942 struct ice_port_info *pi;1943 struct device *dev;1944 int retcode;1945 1946 if (!vsi || !vsi->port_info || !vsi->back)1947 return -EINVAL;1948 if (vsi->type != ICE_VSI_PF)1949 return 0;1950 1951 dev = ice_pf_to_dev(vsi->back);1952 1953 pi = vsi->port_info;1954 1955 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);1956 if (!pcaps)1957 return -ENOMEM;1958 1959 retcode = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps,1960 NULL);1961 if (retcode) {1962 dev_err(dev, "Failed to get phy capabilities, VSI %d error %d\n",1963 vsi->vsi_num, retcode);1964 retcode = -EIO;1965 goto out;1966 }1967 1968 /* No change in link */1969 if (link_up == !!(pcaps->caps & ICE_AQC_PHY_EN_LINK) &&1970 link_up == !!(pi->phy.link_info.link_info & ICE_AQ_LINK_UP))1971 goto out;1972 1973 /* Use the current user PHY configuration. The current user PHY1974 * configuration is initialized during probe from PHY capabilities1975 * software mode, and updated on set PHY configuration.1976 */1977 cfg = kmemdup(&pi->phy.curr_user_phy_cfg, sizeof(*cfg), GFP_KERNEL);1978 if (!cfg) {1979 retcode = -ENOMEM;1980 goto out;1981 }1982 1983 cfg->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;1984 if (link_up)1985 cfg->caps |= ICE_AQ_PHY_ENA_LINK;1986 else1987 cfg->caps &= ~ICE_AQ_PHY_ENA_LINK;1988 1989 retcode = ice_aq_set_phy_cfg(&vsi->back->hw, pi, cfg, NULL);1990 if (retcode) {1991 dev_err(dev, "Failed to set phy config, VSI %d error %d\n",1992 vsi->vsi_num, retcode);1993 retcode = -EIO;1994 }1995 1996 kfree(cfg);1997out:1998 kfree(pcaps);1999 return retcode;2000}2001 2002/**2003 * ice_init_nvm_phy_type - Initialize the NVM PHY type2004 * @pi: port info structure2005 *2006 * Initialize nvm_phy_type_[low|high] for link lenient mode support2007 */2008static int ice_init_nvm_phy_type(struct ice_port_info *pi)2009{2010 struct ice_aqc_get_phy_caps_data *pcaps;2011 struct ice_pf *pf = pi->hw->back;2012 int err;2013 2014 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);2015 if (!pcaps)2016 return -ENOMEM;2017 2018 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_NO_MEDIA,2019 pcaps, NULL);2020 2021 if (err) {2022 dev_err(ice_pf_to_dev(pf), "Get PHY capability failed.\n");2023 goto out;2024 }2025 2026 pf->nvm_phy_type_hi = pcaps->phy_type_high;2027 pf->nvm_phy_type_lo = pcaps->phy_type_low;2028 2029out:2030 kfree(pcaps);2031 return err;2032}2033 2034/**2035 * ice_init_link_dflt_override - Initialize link default override2036 * @pi: port info structure2037 *2038 * Initialize link default override and PHY total port shutdown during probe2039 */2040static void ice_init_link_dflt_override(struct ice_port_info *pi)2041{2042 struct ice_link_default_override_tlv *ldo;2043 struct ice_pf *pf = pi->hw->back;2044 2045 ldo = &pf->link_dflt_override;2046 if (ice_get_link_default_override(ldo, pi))2047 return;2048 2049 if (!(ldo->options & ICE_LINK_OVERRIDE_PORT_DIS))2050 return;2051 2052 /* Enable Total Port Shutdown (override/replace link-down-on-close2053 * ethtool private flag) for ports with Port Disable bit set.2054 */2055 set_bit(ICE_FLAG_TOTAL_PORT_SHUTDOWN_ENA, pf->flags);2056 set_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, pf->flags);2057}2058 2059/**2060 * ice_init_phy_cfg_dflt_override - Initialize PHY cfg default override settings2061 * @pi: port info structure2062 *2063 * If default override is enabled, initialize the user PHY cfg speed and FEC2064 * settings using the default override mask from the NVM.2065 *2066 * The PHY should only be configured with the default override settings the2067 * first time media is available. The ICE_LINK_DEFAULT_OVERRIDE_PENDING state2068 * is used to indicate that the user PHY cfg default override is initialized2069 * and the PHY has not been configured with the default override settings. The2070 * state is set here, and cleared in ice_configure_phy the first time the PHY is2071 * configured.2072 *2073 * This function should be called only if the FW doesn't support default2074 * configuration mode, as reported by ice_fw_supports_report_dflt_cfg.2075 */2076static void ice_init_phy_cfg_dflt_override(struct ice_port_info *pi)2077{2078 struct ice_link_default_override_tlv *ldo;2079 struct ice_aqc_set_phy_cfg_data *cfg;2080 struct ice_phy_info *phy = &pi->phy;2081 struct ice_pf *pf = pi->hw->back;2082 2083 ldo = &pf->link_dflt_override;2084 2085 /* If link default override is enabled, use to mask NVM PHY capabilities2086 * for speed and FEC default configuration.2087 */2088 cfg = &phy->curr_user_phy_cfg;2089 2090 if (ldo->phy_type_low || ldo->phy_type_high) {2091 cfg->phy_type_low = pf->nvm_phy_type_lo &2092 cpu_to_le64(ldo->phy_type_low);2093 cfg->phy_type_high = pf->nvm_phy_type_hi &2094 cpu_to_le64(ldo->phy_type_high);2095 }2096 cfg->link_fec_opt = ldo->fec_options;2097 phy->curr_user_fec_req = ICE_FEC_AUTO;2098 2099 set_bit(ICE_LINK_DEFAULT_OVERRIDE_PENDING, pf->state);2100}2101 2102/**2103 * ice_init_phy_user_cfg - Initialize the PHY user configuration2104 * @pi: port info structure2105 *2106 * Initialize the current user PHY configuration, speed, FEC, and FC requested2107 * mode to default. The PHY defaults are from get PHY capabilities topology2108 * with media so call when media is first available. An error is returned if2109 * called when media is not available. The PHY initialization completed state is2110 * set here.2111 *2112 * These configurations are used when setting PHY2113 * configuration. The user PHY configuration is updated on set PHY2114 * configuration. Returns 0 on success, negative on failure2115 */2116static int ice_init_phy_user_cfg(struct ice_port_info *pi)2117{2118 struct ice_aqc_get_phy_caps_data *pcaps;2119 struct ice_phy_info *phy = &pi->phy;2120 struct ice_pf *pf = pi->hw->back;2121 int err;2122 2123 if (!(phy->link_info.link_info & ICE_AQ_MEDIA_AVAILABLE))2124 return -EIO;2125 2126 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);2127 if (!pcaps)2128 return -ENOMEM;2129 2130 if (ice_fw_supports_report_dflt_cfg(pi->hw))2131 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_DFLT_CFG,2132 pcaps, NULL);2133 else2134 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA,2135 pcaps, NULL);2136 if (err) {2137 dev_err(ice_pf_to_dev(pf), "Get PHY capability failed.\n");2138 goto err_out;2139 }2140 2141 ice_copy_phy_caps_to_cfg(pi, pcaps, &pi->phy.curr_user_phy_cfg);2142 2143 /* check if lenient mode is supported and enabled */2144 if (ice_fw_supports_link_override(pi->hw) &&2145 !(pcaps->module_compliance_enforcement &2146 ICE_AQC_MOD_ENFORCE_STRICT_MODE)) {2147 set_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags);2148 2149 /* if the FW supports default PHY configuration mode, then the driver2150 * does not have to apply link override settings. If not,2151 * initialize user PHY configuration with link override values2152 */2153 if (!ice_fw_supports_report_dflt_cfg(pi->hw) &&2154 (pf->link_dflt_override.options & ICE_LINK_OVERRIDE_EN)) {2155 ice_init_phy_cfg_dflt_override(pi);2156 goto out;2157 }2158 }2159 2160 /* if link default override is not enabled, set user flow control and2161 * FEC settings based on what get_phy_caps returned2162 */2163 phy->curr_user_fec_req = ice_caps_to_fec_mode(pcaps->caps,2164 pcaps->link_fec_options);2165 phy->curr_user_fc_req = ice_caps_to_fc_mode(pcaps->caps);2166 2167out:2168 phy->curr_user_speed_req = ICE_AQ_LINK_SPEED_M;2169 set_bit(ICE_PHY_INIT_COMPLETE, pf->state);2170err_out:2171 kfree(pcaps);2172 return err;2173}2174 2175/**2176 * ice_configure_phy - configure PHY2177 * @vsi: VSI of PHY2178 *2179 * Set the PHY configuration. If the current PHY configuration is the same as2180 * the curr_user_phy_cfg, then do nothing to avoid link flap. Otherwise2181 * configure the based get PHY capabilities for topology with media.2182 */2183static int ice_configure_phy(struct ice_vsi *vsi)2184{2185 struct device *dev = ice_pf_to_dev(vsi->back);2186 struct ice_port_info *pi = vsi->port_info;2187 struct ice_aqc_get_phy_caps_data *pcaps;2188 struct ice_aqc_set_phy_cfg_data *cfg;2189 struct ice_phy_info *phy = &pi->phy;2190 struct ice_pf *pf = vsi->back;2191 int err;2192 2193 /* Ensure we have media as we cannot configure a medialess port */2194 if (!(phy->link_info.link_info & ICE_AQ_MEDIA_AVAILABLE))2195 return -ENOMEDIUM;2196 2197 ice_print_topo_conflict(vsi);2198 2199 if (!test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags) &&2200 phy->link_info.topo_media_conflict == ICE_AQ_LINK_TOPO_UNSUPP_MEDIA)2201 return -EPERM;2202 2203 if (test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, pf->flags))2204 return ice_force_phys_link_state(vsi, true);2205 2206 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);2207 if (!pcaps)2208 return -ENOMEM;2209 2210 /* Get current PHY config */2211 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps,2212 NULL);2213 if (err) {2214 dev_err(dev, "Failed to get PHY configuration, VSI %d error %d\n",2215 vsi->vsi_num, err);2216 goto done;2217 }2218 2219 /* If PHY enable link is configured and configuration has not changed,2220 * there's nothing to do2221 */2222 if (pcaps->caps & ICE_AQC_PHY_EN_LINK &&2223 ice_phy_caps_equals_cfg(pcaps, &phy->curr_user_phy_cfg))2224 goto done;2225 2226 /* Use PHY topology as baseline for configuration */2227 memset(pcaps, 0, sizeof(*pcaps));2228 if (ice_fw_supports_report_dflt_cfg(pi->hw))2229 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_DFLT_CFG,2230 pcaps, NULL);2231 else2232 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA,2233 pcaps, NULL);2234 if (err) {2235 dev_err(dev, "Failed to get PHY caps, VSI %d error %d\n",2236 vsi->vsi_num, err);2237 goto done;2238 }2239 2240 cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);2241 if (!cfg) {2242 err = -ENOMEM;2243 goto done;2244 }2245 2246 ice_copy_phy_caps_to_cfg(pi, pcaps, cfg);2247 2248 /* Speed - If default override pending, use curr_user_phy_cfg set in2249 * ice_init_phy_user_cfg_ldo.2250 */2251 if (test_and_clear_bit(ICE_LINK_DEFAULT_OVERRIDE_PENDING,2252 vsi->back->state)) {2253 cfg->phy_type_low = phy->curr_user_phy_cfg.phy_type_low;2254 cfg->phy_type_high = phy->curr_user_phy_cfg.phy_type_high;2255 } else {2256 u64 phy_low = 0, phy_high = 0;2257 2258 ice_update_phy_type(&phy_low, &phy_high,2259 pi->phy.curr_user_speed_req);2260 cfg->phy_type_low = pcaps->phy_type_low & cpu_to_le64(phy_low);2261 cfg->phy_type_high = pcaps->phy_type_high &2262 cpu_to_le64(phy_high);2263 }2264 2265 /* Can't provide what was requested; use PHY capabilities */2266 if (!cfg->phy_type_low && !cfg->phy_type_high) {2267 cfg->phy_type_low = pcaps->phy_type_low;2268 cfg->phy_type_high = pcaps->phy_type_high;2269 }2270 2271 /* FEC */2272 ice_cfg_phy_fec(pi, cfg, phy->curr_user_fec_req);2273 2274 /* Can't provide what was requested; use PHY capabilities */2275 if (cfg->link_fec_opt !=2276 (cfg->link_fec_opt & pcaps->link_fec_options)) {2277 cfg->caps |= pcaps->caps & ICE_AQC_PHY_EN_AUTO_FEC;2278 cfg->link_fec_opt = pcaps->link_fec_options;2279 }2280 2281 /* Flow Control - always supported; no need to check against2282 * capabilities2283 */2284 ice_cfg_phy_fc(pi, cfg, phy->curr_user_fc_req);2285 2286 /* Enable link and link update */2287 cfg->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT | ICE_AQ_PHY_ENA_LINK;2288 2289 err = ice_aq_set_phy_cfg(&pf->hw, pi, cfg, NULL);2290 if (err)2291 dev_err(dev, "Failed to set phy config, VSI %d error %d\n",2292 vsi->vsi_num, err);2293 2294 kfree(cfg);2295done:2296 kfree(pcaps);2297 return err;2298}2299 2300/**2301 * ice_check_media_subtask - Check for media2302 * @pf: pointer to PF struct2303 *2304 * If media is available, then initialize PHY user configuration if it is not2305 * been, and configure the PHY if the interface is up.2306 */2307static void ice_check_media_subtask(struct ice_pf *pf)2308{2309 struct ice_port_info *pi;2310 struct ice_vsi *vsi;2311 int err;2312 2313 /* No need to check for media if it's already present */2314 if (!test_bit(ICE_FLAG_NO_MEDIA, pf->flags))2315 return;2316 2317 vsi = ice_get_main_vsi(pf);2318 if (!vsi)2319 return;2320 2321 /* Refresh link info and check if media is present */2322 pi = vsi->port_info;2323 err = ice_update_link_info(pi);2324 if (err)2325 return;2326 2327 ice_check_link_cfg_err(pf, pi->phy.link_info.link_cfg_err);2328 2329 if (pi->phy.link_info.link_info & ICE_AQ_MEDIA_AVAILABLE) {2330 if (!test_bit(ICE_PHY_INIT_COMPLETE, pf->state))2331 ice_init_phy_user_cfg(pi);2332 2333 /* PHY settings are reset on media insertion, reconfigure2334 * PHY to preserve settings.2335 */2336 if (test_bit(ICE_VSI_DOWN, vsi->state) &&2337 test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, vsi->back->flags))2338 return;2339 2340 err = ice_configure_phy(vsi);2341 if (!err)2342 clear_bit(ICE_FLAG_NO_MEDIA, pf->flags);2343 2344 /* A Link Status Event will be generated; the event handler2345 * will complete bringing the interface up2346 */2347 }2348}2349 2350/**2351 * ice_service_task - manage and run subtasks2352 * @work: pointer to work_struct contained by the PF struct2353 */2354static void ice_service_task(struct work_struct *work)2355{2356 struct ice_pf *pf = container_of(work, struct ice_pf, serv_task);2357 unsigned long start_time = jiffies;2358 2359 /* subtasks */2360 2361 /* process reset requests first */2362 ice_reset_subtask(pf);2363 2364 /* bail if a reset/recovery cycle is pending or rebuild failed */2365 if (ice_is_reset_in_progress(pf->state) ||2366 test_bit(ICE_SUSPENDED, pf->state) ||2367 test_bit(ICE_NEEDS_RESTART, pf->state)) {2368 ice_service_task_complete(pf);2369 return;2370 }2371 2372 if (test_and_clear_bit(ICE_AUX_ERR_PENDING, pf->state)) {2373 struct iidc_event *event;2374 2375 event = kzalloc(sizeof(*event), GFP_KERNEL);2376 if (event) {2377 set_bit(IIDC_EVENT_CRIT_ERR, event->type);2378 /* report the entire OICR value to AUX driver */2379 swap(event->reg, pf->oicr_err_reg);2380 ice_send_event_to_aux(pf, event);2381 kfree(event);2382 }2383 }2384 2385 /* unplug aux dev per request, if an unplug request came in2386 * while processing a plug request, this will handle it2387 */2388 if (test_and_clear_bit(ICE_FLAG_UNPLUG_AUX_DEV, pf->flags))2389 ice_unplug_aux_dev(pf);2390 2391 /* Plug aux device per request */2392 if (test_and_clear_bit(ICE_FLAG_PLUG_AUX_DEV, pf->flags))2393 ice_plug_aux_dev(pf);2394 2395 if (test_and_clear_bit(ICE_FLAG_MTU_CHANGED, pf->flags)) {2396 struct iidc_event *event;2397 2398 event = kzalloc(sizeof(*event), GFP_KERNEL);2399 if (event) {2400 set_bit(IIDC_EVENT_AFTER_MTU_CHANGE, event->type);2401 ice_send_event_to_aux(pf, event);2402 kfree(event);2403 }2404 }2405 2406 ice_clean_adminq_subtask(pf);2407 ice_check_media_subtask(pf);2408 ice_check_for_hang_subtask(pf);2409 ice_sync_fltr_subtask(pf);2410 ice_handle_mdd_event(pf);2411 ice_watchdog_subtask(pf);2412 2413 if (ice_is_safe_mode(pf)) {2414 ice_service_task_complete(pf);2415 return;2416 }2417 2418 ice_process_vflr_event(pf);2419 ice_clean_mailboxq_subtask(pf);2420 ice_clean_sbq_subtask(pf);2421 ice_sync_arfs_fltrs(pf);2422 ice_flush_fdir_ctx(pf);2423 2424 /* Clear ICE_SERVICE_SCHED flag to allow scheduling next event */2425 ice_service_task_complete(pf);2426 2427 /* If the tasks have taken longer than one service timer period2428 * or there is more work to be done, reset the service timer to2429 * schedule the service task now.2430 */2431 if (time_after(jiffies, (start_time + pf->serv_tmr_period)) ||2432 test_bit(ICE_MDD_EVENT_PENDING, pf->state) ||2433 test_bit(ICE_VFLR_EVENT_PENDING, pf->state) ||2434 test_bit(ICE_MAILBOXQ_EVENT_PENDING, pf->state) ||2435 test_bit(ICE_FD_VF_FLUSH_CTX, pf->state) ||2436 test_bit(ICE_SIDEBANDQ_EVENT_PENDING, pf->state) ||2437 test_bit(ICE_ADMINQ_EVENT_PENDING, pf->state))2438 mod_timer(&pf->serv_tmr, jiffies);2439}2440 2441/**2442 * ice_set_ctrlq_len - helper function to set controlq length2443 * @hw: pointer to the HW instance2444 */2445static void ice_set_ctrlq_len(struct ice_hw *hw)2446{2447 hw->adminq.num_rq_entries = ICE_AQ_LEN;2448 hw->adminq.num_sq_entries = ICE_AQ_LEN;2449 hw->adminq.rq_buf_size = ICE_AQ_MAX_BUF_LEN;2450 hw->adminq.sq_buf_size = ICE_AQ_MAX_BUF_LEN;2451 hw->mailboxq.num_rq_entries = PF_MBX_ARQLEN_ARQLEN_M;2452 hw->mailboxq.num_sq_entries = ICE_MBXSQ_LEN;2453 hw->mailboxq.rq_buf_size = ICE_MBXQ_MAX_BUF_LEN;2454 hw->mailboxq.sq_buf_size = ICE_MBXQ_MAX_BUF_LEN;2455 hw->sbq.num_rq_entries = ICE_SBQ_LEN;2456 hw->sbq.num_sq_entries = ICE_SBQ_LEN;2457 hw->sbq.rq_buf_size = ICE_SBQ_MAX_BUF_LEN;2458 hw->sbq.sq_buf_size = ICE_SBQ_MAX_BUF_LEN;2459}2460 2461/**2462 * ice_schedule_reset - schedule a reset2463 * @pf: board private structure2464 * @reset: reset being requested2465 */2466int ice_schedule_reset(struct ice_pf *pf, enum ice_reset_req reset)2467{2468 struct device *dev = ice_pf_to_dev(pf);2469 2470 /* bail out if earlier reset has failed */2471 if (test_bit(ICE_RESET_FAILED, pf->state)) {2472 dev_dbg(dev, "earlier reset has failed\n");2473 return -EIO;2474 }2475 /* bail if reset/recovery already in progress */2476 if (ice_is_reset_in_progress(pf->state)) {2477 dev_dbg(dev, "Reset already in progress\n");2478 return -EBUSY;2479 }2480 2481 switch (reset) {2482 case ICE_RESET_PFR:2483 set_bit(ICE_PFR_REQ, pf->state);2484 break;2485 case ICE_RESET_CORER:2486 set_bit(ICE_CORER_REQ, pf->state);2487 break;2488 case ICE_RESET_GLOBR:2489 set_bit(ICE_GLOBR_REQ, pf->state);2490 break;2491 default:2492 return -EINVAL;2493 }2494 2495 ice_service_task_schedule(pf);2496 return 0;2497}2498 2499/**2500 * ice_irq_affinity_notify - Callback for affinity changes2501 * @notify: context as to what irq was changed2502 * @mask: the new affinity mask2503 *2504 * This is a callback function used by the irq_set_affinity_notifier function2505 * so that we may register to receive changes to the irq affinity masks.2506 */2507static void2508ice_irq_affinity_notify(struct irq_affinity_notify *notify,2509 const cpumask_t *mask)2510{2511 struct ice_q_vector *q_vector =2512 container_of(notify, struct ice_q_vector, affinity_notify);2513 2514 cpumask_copy(&q_vector->affinity_mask, mask);2515}2516 2517/**2518 * ice_irq_affinity_release - Callback for affinity notifier release2519 * @ref: internal core kernel usage2520 *2521 * This is a callback function used by the irq_set_affinity_notifier function2522 * to inform the current notification subscriber that they will no longer2523 * receive notifications.2524 */2525static void ice_irq_affinity_release(struct kref __always_unused *ref) {}2526 2527/**2528 * ice_vsi_ena_irq - Enable IRQ for the given VSI2529 * @vsi: the VSI being configured2530 */2531static int ice_vsi_ena_irq(struct ice_vsi *vsi)2532{2533 struct ice_hw *hw = &vsi->back->hw;2534 int i;2535 2536 ice_for_each_q_vector(vsi, i)2537 ice_irq_dynamic_ena(hw, vsi, vsi->q_vectors[i]);2538 2539 ice_flush(hw);2540 return 0;2541}2542 2543/**2544 * ice_vsi_req_irq_msix - get MSI-X vectors from the OS for the VSI2545 * @vsi: the VSI being configured2546 * @basename: name for the vector2547 */2548static int ice_vsi_req_irq_msix(struct ice_vsi *vsi, char *basename)2549{2550 int q_vectors = vsi->num_q_vectors;2551 struct ice_pf *pf = vsi->back;2552 struct device *dev;2553 int rx_int_idx = 0;2554 int tx_int_idx = 0;2555 int vector, err;2556 int irq_num;2557 2558 dev = ice_pf_to_dev(pf);2559 for (vector = 0; vector < q_vectors; vector++) {2560 struct ice_q_vector *q_vector = vsi->q_vectors[vector];2561 2562 irq_num = q_vector->irq.virq;2563 2564 if (q_vector->tx.tx_ring && q_vector->rx.rx_ring) {2565 snprintf(q_vector->name, sizeof(q_vector->name) - 1,2566 "%s-%s-%d", basename, "TxRx", rx_int_idx++);2567 tx_int_idx++;2568 } else if (q_vector->rx.rx_ring) {2569 snprintf(q_vector->name, sizeof(q_vector->name) - 1,2570 "%s-%s-%d", basename, "rx", rx_int_idx++);2571 } else if (q_vector->tx.tx_ring) {2572 snprintf(q_vector->name, sizeof(q_vector->name) - 1,2573 "%s-%s-%d", basename, "tx", tx_int_idx++);2574 } else {2575 /* skip this unused q_vector */2576 continue;2577 }2578 if (vsi->type == ICE_VSI_CTRL && vsi->vf)2579 err = devm_request_irq(dev, irq_num, vsi->irq_handler,2580 IRQF_SHARED, q_vector->name,2581 q_vector);2582 else2583 err = devm_request_irq(dev, irq_num, vsi->irq_handler,2584 0, q_vector->name, q_vector);2585 if (err) {2586 netdev_err(vsi->netdev, "MSIX request_irq failed, error: %d\n",2587 err);2588 goto free_q_irqs;2589 }2590 2591 /* register for affinity change notifications */2592 if (!IS_ENABLED(CONFIG_RFS_ACCEL)) {2593 struct irq_affinity_notify *affinity_notify;2594 2595 affinity_notify = &q_vector->affinity_notify;2596 affinity_notify->notify = ice_irq_affinity_notify;2597 affinity_notify->release = ice_irq_affinity_release;2598 irq_set_affinity_notifier(irq_num, affinity_notify);2599 }2600 2601 /* assign the mask for this irq */2602 irq_update_affinity_hint(irq_num, &q_vector->affinity_mask);2603 }2604 2605 err = ice_set_cpu_rx_rmap(vsi);2606 if (err) {2607 netdev_err(vsi->netdev, "Failed to setup CPU RMAP on VSI %u: %pe\n",2608 vsi->vsi_num, ERR_PTR(err));2609 goto free_q_irqs;2610 }2611 2612 vsi->irqs_ready = true;2613 return 0;2614 2615free_q_irqs:2616 while (vector--) {2617 irq_num = vsi->q_vectors[vector]->irq.virq;2618 if (!IS_ENABLED(CONFIG_RFS_ACCEL))2619 irq_set_affinity_notifier(irq_num, NULL);2620 irq_update_affinity_hint(irq_num, NULL);2621 devm_free_irq(dev, irq_num, &vsi->q_vectors[vector]);2622 }2623 return err;2624}2625 2626/**2627 * ice_xdp_alloc_setup_rings - Allocate and setup Tx rings for XDP2628 * @vsi: VSI to setup Tx rings used by XDP2629 *2630 * Return 0 on success and negative value on error2631 */2632static int ice_xdp_alloc_setup_rings(struct ice_vsi *vsi)2633{2634 struct device *dev = ice_pf_to_dev(vsi->back);2635 struct ice_tx_desc *tx_desc;2636 int i, j;2637 2638 ice_for_each_xdp_txq(vsi, i) {2639 u16 xdp_q_idx = vsi->alloc_txq + i;2640 struct ice_ring_stats *ring_stats;2641 struct ice_tx_ring *xdp_ring;2642 2643 xdp_ring = kzalloc(sizeof(*xdp_ring), GFP_KERNEL);2644 if (!xdp_ring)2645 goto free_xdp_rings;2646 2647 ring_stats = kzalloc(sizeof(*ring_stats), GFP_KERNEL);2648 if (!ring_stats) {2649 ice_free_tx_ring(xdp_ring);2650 goto free_xdp_rings;2651 }2652 2653 xdp_ring->ring_stats = ring_stats;2654 xdp_ring->q_index = xdp_q_idx;2655 xdp_ring->reg_idx = vsi->txq_map[xdp_q_idx];2656 xdp_ring->vsi = vsi;2657 xdp_ring->netdev = NULL;2658 xdp_ring->dev = dev;2659 xdp_ring->count = vsi->num_tx_desc;2660 WRITE_ONCE(vsi->xdp_rings[i], xdp_ring);2661 if (ice_setup_tx_ring(xdp_ring))2662 goto free_xdp_rings;2663 ice_set_ring_xdp(xdp_ring);2664 spin_lock_init(&xdp_ring->tx_lock);2665 for (j = 0; j < xdp_ring->count; j++) {2666 tx_desc = ICE_TX_DESC(xdp_ring, j);2667 tx_desc->cmd_type_offset_bsz = 0;2668 }2669 }2670 2671 return 0;2672 2673free_xdp_rings:2674 for (; i >= 0; i--) {2675 if (vsi->xdp_rings[i] && vsi->xdp_rings[i]->desc) {2676 kfree_rcu(vsi->xdp_rings[i]->ring_stats, rcu);2677 vsi->xdp_rings[i]->ring_stats = NULL;2678 ice_free_tx_ring(vsi->xdp_rings[i]);2679 }2680 }2681 return -ENOMEM;2682}2683 2684/**2685 * ice_vsi_assign_bpf_prog - set or clear bpf prog pointer on VSI2686 * @vsi: VSI to set the bpf prog on2687 * @prog: the bpf prog pointer2688 */2689static void ice_vsi_assign_bpf_prog(struct ice_vsi *vsi, struct bpf_prog *prog)2690{2691 struct bpf_prog *old_prog;2692 int i;2693 2694 old_prog = xchg(&vsi->xdp_prog, prog);2695 ice_for_each_rxq(vsi, i)2696 WRITE_ONCE(vsi->rx_rings[i]->xdp_prog, vsi->xdp_prog);2697 2698 if (old_prog)2699 bpf_prog_put(old_prog);2700}2701 2702static struct ice_tx_ring *ice_xdp_ring_from_qid(struct ice_vsi *vsi, int qid)2703{2704 struct ice_q_vector *q_vector;2705 struct ice_tx_ring *ring;2706 2707 if (static_key_enabled(&ice_xdp_locking_key))2708 return vsi->xdp_rings[qid % vsi->num_xdp_txq];2709 2710 q_vector = vsi->rx_rings[qid]->q_vector;2711 ice_for_each_tx_ring(ring, q_vector->tx)2712 if (ice_ring_is_xdp(ring))2713 return ring;2714 2715 return NULL;2716}2717 2718/**2719 * ice_map_xdp_rings - Map XDP rings to interrupt vectors2720 * @vsi: the VSI with XDP rings being configured2721 *2722 * Map XDP rings to interrupt vectors and perform the configuration steps2723 * dependent on the mapping.2724 */2725void ice_map_xdp_rings(struct ice_vsi *vsi)2726{2727 int xdp_rings_rem = vsi->num_xdp_txq;2728 int v_idx, q_idx;2729 2730 /* follow the logic from ice_vsi_map_rings_to_vectors */2731 ice_for_each_q_vector(vsi, v_idx) {2732 struct ice_q_vector *q_vector = vsi->q_vectors[v_idx];2733 int xdp_rings_per_v, q_id, q_base;2734 2735 xdp_rings_per_v = DIV_ROUND_UP(xdp_rings_rem,2736 vsi->num_q_vectors - v_idx);2737 q_base = vsi->num_xdp_txq - xdp_rings_rem;2738 2739 for (q_id = q_base; q_id < (q_base + xdp_rings_per_v); q_id++) {2740 struct ice_tx_ring *xdp_ring = vsi->xdp_rings[q_id];2741 2742 xdp_ring->q_vector = q_vector;2743 xdp_ring->next = q_vector->tx.tx_ring;2744 q_vector->tx.tx_ring = xdp_ring;2745 }2746 xdp_rings_rem -= xdp_rings_per_v;2747 }2748 2749 ice_for_each_rxq(vsi, q_idx) {2750 vsi->rx_rings[q_idx]->xdp_ring = ice_xdp_ring_from_qid(vsi,2751 q_idx);2752 ice_tx_xsk_pool(vsi, q_idx);2753 }2754}2755 2756/**2757 * ice_prepare_xdp_rings - Allocate, configure and setup Tx rings for XDP2758 * @vsi: VSI to bring up Tx rings used by XDP2759 * @prog: bpf program that will be assigned to VSI2760 * @cfg_type: create from scratch or restore the existing configuration2761 *2762 * Return 0 on success and negative value on error2763 */2764int ice_prepare_xdp_rings(struct ice_vsi *vsi, struct bpf_prog *prog,2765 enum ice_xdp_cfg cfg_type)2766{2767 u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 };2768 struct ice_pf *pf = vsi->back;2769 struct ice_qs_cfg xdp_qs_cfg = {2770 .qs_mutex = &pf->avail_q_mutex,2771 .pf_map = pf->avail_txqs,2772 .pf_map_size = pf->max_pf_txqs,2773 .q_count = vsi->num_xdp_txq,2774 .scatter_count = ICE_MAX_SCATTER_TXQS,2775 .vsi_map = vsi->txq_map,2776 .vsi_map_offset = vsi->alloc_txq,2777 .mapping_mode = ICE_VSI_MAP_CONTIG2778 };2779 struct device *dev;2780 int status, i;2781 2782 dev = ice_pf_to_dev(pf);2783 vsi->xdp_rings = devm_kcalloc(dev, vsi->num_xdp_txq,2784 sizeof(*vsi->xdp_rings), GFP_KERNEL);2785 if (!vsi->xdp_rings)2786 return -ENOMEM;2787 2788 vsi->xdp_mapping_mode = xdp_qs_cfg.mapping_mode;2789 if (__ice_vsi_get_qs(&xdp_qs_cfg))2790 goto err_map_xdp;2791 2792 if (static_key_enabled(&ice_xdp_locking_key))2793 netdev_warn(vsi->netdev,2794 "Could not allocate one XDP Tx ring per CPU, XDP_TX/XDP_REDIRECT actions will be slower\n");2795 2796 if (ice_xdp_alloc_setup_rings(vsi))2797 goto clear_xdp_rings;2798 2799 /* omit the scheduler update if in reset path; XDP queues will be2800 * taken into account at the end of ice_vsi_rebuild, where2801 * ice_cfg_vsi_lan is being called2802 */2803 if (cfg_type == ICE_XDP_CFG_PART)2804 return 0;2805 2806 ice_map_xdp_rings(vsi);2807 2808 /* tell the Tx scheduler that right now we have2809 * additional queues2810 */2811 for (i = 0; i < vsi->tc_cfg.numtc; i++)2812 max_txqs[i] = vsi->num_txq + vsi->num_xdp_txq;2813 2814 status = ice_cfg_vsi_lan(vsi->port_info, vsi->idx, vsi->tc_cfg.ena_tc,2815 max_txqs);2816 if (status) {2817 dev_err(dev, "Failed VSI LAN queue config for XDP, error: %d\n",2818 status);2819 goto clear_xdp_rings;2820 }2821 2822 /* assign the prog only when it's not already present on VSI;2823 * this flow is a subject of both ethtool -L and ndo_bpf flows;2824 * VSI rebuild that happens under ethtool -L can expose us to2825 * the bpf_prog refcount issues as we would be swapping same2826 * bpf_prog pointers from vsi->xdp_prog and calling bpf_prog_put2827 * on it as it would be treated as an 'old_prog'; for ndo_bpf2828 * this is not harmful as dev_xdp_install bumps the refcount2829 * before calling the op exposed by the driver;2830 */2831 if (!ice_is_xdp_ena_vsi(vsi))2832 ice_vsi_assign_bpf_prog(vsi, prog);2833 2834 return 0;2835clear_xdp_rings:2836 ice_for_each_xdp_txq(vsi, i)2837 if (vsi->xdp_rings[i]) {2838 kfree_rcu(vsi->xdp_rings[i], rcu);2839 vsi->xdp_rings[i] = NULL;2840 }2841 2842err_map_xdp:2843 mutex_lock(&pf->avail_q_mutex);2844 ice_for_each_xdp_txq(vsi, i) {2845 clear_bit(vsi->txq_map[i + vsi->alloc_txq], pf->avail_txqs);2846 vsi->txq_map[i + vsi->alloc_txq] = ICE_INVAL_Q_INDEX;2847 }2848 mutex_unlock(&pf->avail_q_mutex);2849 2850 devm_kfree(dev, vsi->xdp_rings);2851 return -ENOMEM;2852}2853 2854/**2855 * ice_destroy_xdp_rings - undo the configuration made by ice_prepare_xdp_rings2856 * @vsi: VSI to remove XDP rings2857 * @cfg_type: disable XDP permanently or allow it to be restored later2858 *2859 * Detach XDP rings from irq vectors, clean up the PF bitmap and free2860 * resources2861 */2862int ice_destroy_xdp_rings(struct ice_vsi *vsi, enum ice_xdp_cfg cfg_type)2863{2864 u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 };2865 struct ice_pf *pf = vsi->back;2866 int i, v_idx;2867 2868 /* q_vectors are freed in reset path so there's no point in detaching2869 * rings2870 */2871 if (cfg_type == ICE_XDP_CFG_PART)2872 goto free_qmap;2873 2874 ice_for_each_q_vector(vsi, v_idx) {2875 struct ice_q_vector *q_vector = vsi->q_vectors[v_idx];2876 struct ice_tx_ring *ring;2877 2878 ice_for_each_tx_ring(ring, q_vector->tx)2879 if (!ring->tx_buf || !ice_ring_is_xdp(ring))2880 break;2881 2882 /* restore the value of last node prior to XDP setup */2883 q_vector->tx.tx_ring = ring;2884 }2885 2886free_qmap:2887 mutex_lock(&pf->avail_q_mutex);2888 ice_for_each_xdp_txq(vsi, i) {2889 clear_bit(vsi->txq_map[i + vsi->alloc_txq], pf->avail_txqs);2890 vsi->txq_map[i + vsi->alloc_txq] = ICE_INVAL_Q_INDEX;2891 }2892 mutex_unlock(&pf->avail_q_mutex);2893 2894 ice_for_each_xdp_txq(vsi, i)2895 if (vsi->xdp_rings[i]) {2896 if (vsi->xdp_rings[i]->desc) {2897 synchronize_rcu();2898 ice_free_tx_ring(vsi->xdp_rings[i]);2899 }2900 kfree_rcu(vsi->xdp_rings[i]->ring_stats, rcu);2901 vsi->xdp_rings[i]->ring_stats = NULL;2902 kfree_rcu(vsi->xdp_rings[i], rcu);2903 vsi->xdp_rings[i] = NULL;2904 }2905 2906 devm_kfree(ice_pf_to_dev(pf), vsi->xdp_rings);2907 vsi->xdp_rings = NULL;2908 2909 if (static_key_enabled(&ice_xdp_locking_key))2910 static_branch_dec(&ice_xdp_locking_key);2911 2912 if (cfg_type == ICE_XDP_CFG_PART)2913 return 0;2914 2915 ice_vsi_assign_bpf_prog(vsi, NULL);2916 2917 /* notify Tx scheduler that we destroyed XDP queues and bring2918 * back the old number of child nodes2919 */2920 for (i = 0; i < vsi->tc_cfg.numtc; i++)2921 max_txqs[i] = vsi->num_txq;2922 2923 /* change number of XDP Tx queues to 0 */2924 vsi->num_xdp_txq = 0;2925 2926 return ice_cfg_vsi_lan(vsi->port_info, vsi->idx, vsi->tc_cfg.ena_tc,2927 max_txqs);2928}2929 2930/**2931 * ice_vsi_rx_napi_schedule - Schedule napi on RX queues from VSI2932 * @vsi: VSI to schedule napi on2933 */2934static void ice_vsi_rx_napi_schedule(struct ice_vsi *vsi)2935{2936 int i;2937 2938 ice_for_each_rxq(vsi, i) {2939 struct ice_rx_ring *rx_ring = vsi->rx_rings[i];2940 2941 if (READ_ONCE(rx_ring->xsk_pool))2942 napi_schedule(&rx_ring->q_vector->napi);2943 }2944}2945 2946/**2947 * ice_vsi_determine_xdp_res - figure out how many Tx qs can XDP have2948 * @vsi: VSI to determine the count of XDP Tx qs2949 *2950 * returns 0 if Tx qs count is higher than at least half of CPU count,2951 * -ENOMEM otherwise2952 */2953int ice_vsi_determine_xdp_res(struct ice_vsi *vsi)2954{2955 u16 avail = ice_get_avail_txq_count(vsi->back);2956 u16 cpus = num_possible_cpus();2957 2958 if (avail < cpus / 2)2959 return -ENOMEM;2960 2961 if (vsi->type == ICE_VSI_SF)2962 avail = vsi->alloc_txq;2963 2964 vsi->num_xdp_txq = min_t(u16, avail, cpus);2965 2966 if (vsi->num_xdp_txq < cpus)2967 static_branch_inc(&ice_xdp_locking_key);2968 2969 return 0;2970}2971 2972/**2973 * ice_max_xdp_frame_size - returns the maximum allowed frame size for XDP2974 * @vsi: Pointer to VSI structure2975 */2976static int ice_max_xdp_frame_size(struct ice_vsi *vsi)2977{2978 if (test_bit(ICE_FLAG_LEGACY_RX, vsi->back->flags))2979 return ICE_RXBUF_1664;2980 else2981 return ICE_RXBUF_3072;2982}2983 2984/**2985 * ice_xdp_setup_prog - Add or remove XDP eBPF program2986 * @vsi: VSI to setup XDP for2987 * @prog: XDP program2988 * @extack: netlink extended ack2989 */2990static int2991ice_xdp_setup_prog(struct ice_vsi *vsi, struct bpf_prog *prog,2992 struct netlink_ext_ack *extack)2993{2994 unsigned int frame_size = vsi->netdev->mtu + ICE_ETH_PKT_HDR_PAD;2995 int ret = 0, xdp_ring_err = 0;2996 bool if_running;2997 2998 if (prog && !prog->aux->xdp_has_frags) {2999 if (frame_size > ice_max_xdp_frame_size(vsi)) {3000 NL_SET_ERR_MSG_MOD(extack,3001 "MTU is too large for linear frames and XDP prog does not support frags");3002 return -EOPNOTSUPP;3003 }3004 }3005 3006 /* hot swap progs and avoid toggling link */3007 if (ice_is_xdp_ena_vsi(vsi) == !!prog ||3008 test_bit(ICE_VSI_REBUILD_PENDING, vsi->state)) {3009 ice_vsi_assign_bpf_prog(vsi, prog);3010 return 0;3011 }3012 3013 if_running = netif_running(vsi->netdev) &&3014 !test_and_set_bit(ICE_VSI_DOWN, vsi->state);3015 3016 /* need to stop netdev while setting up the program for Rx rings */3017 if (if_running) {3018 ret = ice_down(vsi);3019 if (ret) {3020 NL_SET_ERR_MSG_MOD(extack, "Preparing device for XDP attach failed");3021 return ret;3022 }3023 }3024 3025 if (!ice_is_xdp_ena_vsi(vsi) && prog) {3026 xdp_ring_err = ice_vsi_determine_xdp_res(vsi);3027 if (xdp_ring_err) {3028 NL_SET_ERR_MSG_MOD(extack, "Not enough Tx resources for XDP");3029 } else {3030 xdp_ring_err = ice_prepare_xdp_rings(vsi, prog,3031 ICE_XDP_CFG_FULL);3032 if (xdp_ring_err)3033 NL_SET_ERR_MSG_MOD(extack, "Setting up XDP Tx resources failed");3034 }3035 xdp_features_set_redirect_target(vsi->netdev, true);3036 /* reallocate Rx queues that are used for zero-copy */3037 xdp_ring_err = ice_realloc_zc_buf(vsi, true);3038 if (xdp_ring_err)3039 NL_SET_ERR_MSG_MOD(extack, "Setting up XDP Rx resources failed");3040 } else if (ice_is_xdp_ena_vsi(vsi) && !prog) {3041 xdp_features_clear_redirect_target(vsi->netdev);3042 xdp_ring_err = ice_destroy_xdp_rings(vsi, ICE_XDP_CFG_FULL);3043 if (xdp_ring_err)3044 NL_SET_ERR_MSG_MOD(extack, "Freeing XDP Tx resources failed");3045 /* reallocate Rx queues that were used for zero-copy */3046 xdp_ring_err = ice_realloc_zc_buf(vsi, false);3047 if (xdp_ring_err)3048 NL_SET_ERR_MSG_MOD(extack, "Freeing XDP Rx resources failed");3049 }3050 3051 if (if_running)3052 ret = ice_up(vsi);3053 3054 if (!ret && prog)3055 ice_vsi_rx_napi_schedule(vsi);3056 3057 return (ret || xdp_ring_err) ? -ENOMEM : 0;3058}3059 3060/**3061 * ice_xdp_safe_mode - XDP handler for safe mode3062 * @dev: netdevice3063 * @xdp: XDP command3064 */3065static int ice_xdp_safe_mode(struct net_device __always_unused *dev,3066 struct netdev_bpf *xdp)3067{3068 NL_SET_ERR_MSG_MOD(xdp->extack,3069 "Please provide working DDP firmware package in order to use XDP\n"3070 "Refer to Documentation/networking/device_drivers/ethernet/intel/ice.rst");3071 return -EOPNOTSUPP;3072}3073 3074/**3075 * ice_xdp - implements XDP handler3076 * @dev: netdevice3077 * @xdp: XDP command3078 */3079int ice_xdp(struct net_device *dev, struct netdev_bpf *xdp)3080{3081 struct ice_netdev_priv *np = netdev_priv(dev);3082 struct ice_vsi *vsi = np->vsi;3083 int ret;3084 3085 if (vsi->type != ICE_VSI_PF && vsi->type != ICE_VSI_SF) {3086 NL_SET_ERR_MSG_MOD(xdp->extack, "XDP can be loaded only on PF or SF VSI");3087 return -EINVAL;3088 }3089 3090 mutex_lock(&vsi->xdp_state_lock);3091 3092 switch (xdp->command) {3093 case XDP_SETUP_PROG:3094 ret = ice_xdp_setup_prog(vsi, xdp->prog, xdp->extack);3095 break;3096 case XDP_SETUP_XSK_POOL:3097 ret = ice_xsk_pool_setup(vsi, xdp->xsk.pool, xdp->xsk.queue_id);3098 break;3099 default:3100 ret = -EINVAL;3101 }3102 3103 mutex_unlock(&vsi->xdp_state_lock);3104 return ret;3105}3106 3107/**3108 * ice_ena_misc_vector - enable the non-queue interrupts3109 * @pf: board private structure3110 */3111static void ice_ena_misc_vector(struct ice_pf *pf)3112{3113 struct ice_hw *hw = &pf->hw;3114 u32 pf_intr_start_offset;3115 u32 val;3116 3117 /* Disable anti-spoof detection interrupt to prevent spurious event3118 * interrupts during a function reset. Anti-spoof functionally is3119 * still supported.3120 */3121 val = rd32(hw, GL_MDCK_TX_TDPU);3122 val |= GL_MDCK_TX_TDPU_RCU_ANTISPOOF_ITR_DIS_M;3123 wr32(hw, GL_MDCK_TX_TDPU, val);3124 3125 /* clear things first */3126 wr32(hw, PFINT_OICR_ENA, 0); /* disable all */3127 rd32(hw, PFINT_OICR); /* read to clear */3128 3129 val = (PFINT_OICR_ECC_ERR_M |3130 PFINT_OICR_MAL_DETECT_M |3131 PFINT_OICR_GRST_M |3132 PFINT_OICR_PCI_EXCEPTION_M |3133 PFINT_OICR_VFLR_M |3134 PFINT_OICR_HMC_ERR_M |3135 PFINT_OICR_PE_PUSH_M |3136 PFINT_OICR_PE_CRITERR_M);3137 3138 wr32(hw, PFINT_OICR_ENA, val);3139 3140 /* SW_ITR_IDX = 0, but don't change INTENA */3141 wr32(hw, GLINT_DYN_CTL(pf->oicr_irq.index),3142 GLINT_DYN_CTL_SW_ITR_INDX_M | GLINT_DYN_CTL_INTENA_MSK_M);3143 3144 if (!pf->hw.dev_caps.ts_dev_info.ts_ll_int_read)3145 return;3146 pf_intr_start_offset = rd32(hw, PFINT_ALLOC) & PFINT_ALLOC_FIRST;3147 wr32(hw, GLINT_DYN_CTL(pf->ll_ts_irq.index + pf_intr_start_offset),3148 GLINT_DYN_CTL_SW_ITR_INDX_M | GLINT_DYN_CTL_INTENA_MSK_M);3149}3150 3151/**3152 * ice_ll_ts_intr - ll_ts interrupt handler3153 * @irq: interrupt number3154 * @data: pointer to a q_vector3155 */3156static irqreturn_t ice_ll_ts_intr(int __always_unused irq, void *data)3157{3158 struct ice_pf *pf = data;3159 u32 pf_intr_start_offset;3160 struct ice_ptp_tx *tx;3161 unsigned long flags;3162 struct ice_hw *hw;3163 u32 val;3164 u8 idx;3165 3166 hw = &pf->hw;3167 tx = &pf->ptp.port.tx;3168 spin_lock_irqsave(&tx->lock, flags);3169 ice_ptp_complete_tx_single_tstamp(tx);3170 3171 idx = find_next_bit_wrap(tx->in_use, tx->len,3172 tx->last_ll_ts_idx_read + 1);3173 if (idx != tx->len)3174 ice_ptp_req_tx_single_tstamp(tx, idx);3175 spin_unlock_irqrestore(&tx->lock, flags);3176 3177 val = GLINT_DYN_CTL_INTENA_M | GLINT_DYN_CTL_CLEARPBA_M |3178 (ICE_ITR_NONE << GLINT_DYN_CTL_ITR_INDX_S);3179 pf_intr_start_offset = rd32(hw, PFINT_ALLOC) & PFINT_ALLOC_FIRST;3180 wr32(hw, GLINT_DYN_CTL(pf->ll_ts_irq.index + pf_intr_start_offset),3181 val);3182 3183 return IRQ_HANDLED;3184}3185 3186/**3187 * ice_misc_intr - misc interrupt handler3188 * @irq: interrupt number3189 * @data: pointer to a q_vector3190 */3191static irqreturn_t ice_misc_intr(int __always_unused irq, void *data)3192{3193 struct ice_pf *pf = (struct ice_pf *)data;3194 irqreturn_t ret = IRQ_HANDLED;3195 struct ice_hw *hw = &pf->hw;3196 struct device *dev;3197 u32 oicr, ena_mask;3198 3199 dev = ice_pf_to_dev(pf);3200 set_bit(ICE_ADMINQ_EVENT_PENDING, pf->state);3201 set_bit(ICE_MAILBOXQ_EVENT_PENDING, pf->state);3202 set_bit(ICE_SIDEBANDQ_EVENT_PENDING, pf->state);3203 3204 oicr = rd32(hw, PFINT_OICR);3205 ena_mask = rd32(hw, PFINT_OICR_ENA);3206 3207 if (oicr & PFINT_OICR_SWINT_M) {3208 ena_mask &= ~PFINT_OICR_SWINT_M;3209 pf->sw_int_count++;3210 }3211 3212 if (oicr & PFINT_OICR_MAL_DETECT_M) {3213 ena_mask &= ~PFINT_OICR_MAL_DETECT_M;3214 set_bit(ICE_MDD_EVENT_PENDING, pf->state);3215 }3216 if (oicr & PFINT_OICR_VFLR_M) {3217 /* disable any further VFLR event notifications */3218 if (test_bit(ICE_VF_RESETS_DISABLED, pf->state)) {3219 u32 reg = rd32(hw, PFINT_OICR_ENA);3220 3221 reg &= ~PFINT_OICR_VFLR_M;3222 wr32(hw, PFINT_OICR_ENA, reg);3223 } else {3224 ena_mask &= ~PFINT_OICR_VFLR_M;3225 set_bit(ICE_VFLR_EVENT_PENDING, pf->state);3226 }3227 }3228 3229 if (oicr & PFINT_OICR_GRST_M) {3230 u32 reset;3231 3232 /* we have a reset warning */3233 ena_mask &= ~PFINT_OICR_GRST_M;3234 reset = FIELD_GET(GLGEN_RSTAT_RESET_TYPE_M,3235 rd32(hw, GLGEN_RSTAT));3236 3237 if (reset == ICE_RESET_CORER)3238 pf->corer_count++;3239 else if (reset == ICE_RESET_GLOBR)3240 pf->globr_count++;3241 else if (reset == ICE_RESET_EMPR)3242 pf->empr_count++;3243 else3244 dev_dbg(dev, "Invalid reset type %d\n", reset);3245 3246 /* If a reset cycle isn't already in progress, we set a bit in3247 * pf->state so that the service task can start a reset/rebuild.3248 */3249 if (!test_and_set_bit(ICE_RESET_OICR_RECV, pf->state)) {3250 if (reset == ICE_RESET_CORER)3251 set_bit(ICE_CORER_RECV, pf->state);3252 else if (reset == ICE_RESET_GLOBR)3253 set_bit(ICE_GLOBR_RECV, pf->state);3254 else3255 set_bit(ICE_EMPR_RECV, pf->state);3256 3257 /* There are couple of different bits at play here.3258 * hw->reset_ongoing indicates whether the hardware is3259 * in reset. This is set to true when a reset interrupt3260 * is received and set back to false after the driver3261 * has determined that the hardware is out of reset.3262 *3263 * ICE_RESET_OICR_RECV in pf->state indicates3264 * that a post reset rebuild is required before the3265 * driver is operational again. This is set above.3266 *3267 * As this is the start of the reset/rebuild cycle, set3268 * both to indicate that.3269 */3270 hw->reset_ongoing = true;3271 }3272 }3273 3274 if (oicr & PFINT_OICR_TSYN_TX_M) {3275 ena_mask &= ~PFINT_OICR_TSYN_TX_M;3276 if (ice_pf_state_is_nominal(pf) &&3277 pf->hw.dev_caps.ts_dev_info.ts_ll_int_read) {3278 struct ice_ptp_tx *tx = &pf->ptp.port.tx;3279 unsigned long flags;3280 u8 idx;3281 3282 spin_lock_irqsave(&tx->lock, flags);3283 idx = find_next_bit_wrap(tx->in_use, tx->len,3284 tx->last_ll_ts_idx_read + 1);3285 if (idx != tx->len)3286 ice_ptp_req_tx_single_tstamp(tx, idx);3287 spin_unlock_irqrestore(&tx->lock, flags);3288 } else if (ice_ptp_pf_handles_tx_interrupt(pf)) {3289 set_bit(ICE_MISC_THREAD_TX_TSTAMP, pf->misc_thread);3290 ret = IRQ_WAKE_THREAD;3291 }3292 }3293 3294 if (oicr & PFINT_OICR_TSYN_EVNT_M) {3295 u8 tmr_idx = hw->func_caps.ts_func_info.tmr_index_owned;3296 u32 gltsyn_stat = rd32(hw, GLTSYN_STAT(tmr_idx));3297 3298 ena_mask &= ~PFINT_OICR_TSYN_EVNT_M;3299 3300 if (ice_pf_src_tmr_owned(pf)) {3301 /* Save EVENTs from GLTSYN register */3302 pf->ptp.ext_ts_irq |= gltsyn_stat &3303 (GLTSYN_STAT_EVENT0_M |3304 GLTSYN_STAT_EVENT1_M |3305 GLTSYN_STAT_EVENT2_M);3306 3307 ice_ptp_extts_event(pf);3308 }3309 }3310 3311#define ICE_AUX_CRIT_ERR (PFINT_OICR_PE_CRITERR_M | PFINT_OICR_HMC_ERR_M | PFINT_OICR_PE_PUSH_M)3312 if (oicr & ICE_AUX_CRIT_ERR) {3313 pf->oicr_err_reg |= oicr;3314 set_bit(ICE_AUX_ERR_PENDING, pf->state);3315 ena_mask &= ~ICE_AUX_CRIT_ERR;3316 }3317 3318 /* Report any remaining unexpected interrupts */3319 oicr &= ena_mask;3320 if (oicr) {3321 dev_dbg(dev, "unhandled interrupt oicr=0x%08x\n", oicr);3322 /* If a critical error is pending there is no choice but to3323 * reset the device.3324 */3325 if (oicr & (PFINT_OICR_PCI_EXCEPTION_M |3326 PFINT_OICR_ECC_ERR_M)) {3327 set_bit(ICE_PFR_REQ, pf->state);3328 }3329 }3330 ice_service_task_schedule(pf);3331 if (ret == IRQ_HANDLED)3332 ice_irq_dynamic_ena(hw, NULL, NULL);3333 3334 return ret;3335}3336 3337/**3338 * ice_misc_intr_thread_fn - misc interrupt thread function3339 * @irq: interrupt number3340 * @data: pointer to a q_vector3341 */3342static irqreturn_t ice_misc_intr_thread_fn(int __always_unused irq, void *data)3343{3344 struct ice_pf *pf = data;3345 struct ice_hw *hw;3346 3347 hw = &pf->hw;3348 3349 if (ice_is_reset_in_progress(pf->state))3350 goto skip_irq;3351 3352 if (test_and_clear_bit(ICE_MISC_THREAD_TX_TSTAMP, pf->misc_thread)) {3353 /* Process outstanding Tx timestamps. If there is more work,3354 * re-arm the interrupt to trigger again.3355 */3356 if (ice_ptp_process_ts(pf) == ICE_TX_TSTAMP_WORK_PENDING) {3357 wr32(hw, PFINT_OICR, PFINT_OICR_TSYN_TX_M);3358 ice_flush(hw);3359 }3360 }3361 3362skip_irq:3363 ice_irq_dynamic_ena(hw, NULL, NULL);3364 3365 return IRQ_HANDLED;3366}3367 3368/**3369 * ice_dis_ctrlq_interrupts - disable control queue interrupts3370 * @hw: pointer to HW structure3371 */3372static void ice_dis_ctrlq_interrupts(struct ice_hw *hw)3373{3374 /* disable Admin queue Interrupt causes */3375 wr32(hw, PFINT_FW_CTL,3376 rd32(hw, PFINT_FW_CTL) & ~PFINT_FW_CTL_CAUSE_ENA_M);3377 3378 /* disable Mailbox queue Interrupt causes */3379 wr32(hw, PFINT_MBX_CTL,3380 rd32(hw, PFINT_MBX_CTL) & ~PFINT_MBX_CTL_CAUSE_ENA_M);3381 3382 wr32(hw, PFINT_SB_CTL,3383 rd32(hw, PFINT_SB_CTL) & ~PFINT_SB_CTL_CAUSE_ENA_M);3384 3385 /* disable Control queue Interrupt causes */3386 wr32(hw, PFINT_OICR_CTL,3387 rd32(hw, PFINT_OICR_CTL) & ~PFINT_OICR_CTL_CAUSE_ENA_M);3388 3389 ice_flush(hw);3390}3391 3392/**3393 * ice_free_irq_msix_ll_ts- Unroll ll_ts vector setup3394 * @pf: board private structure3395 */3396static void ice_free_irq_msix_ll_ts(struct ice_pf *pf)3397{3398 int irq_num = pf->ll_ts_irq.virq;3399 3400 synchronize_irq(irq_num);3401 devm_free_irq(ice_pf_to_dev(pf), irq_num, pf);3402 3403 ice_free_irq(pf, pf->ll_ts_irq);3404}3405 3406/**3407 * ice_free_irq_msix_misc - Unroll misc vector setup3408 * @pf: board private structure3409 */3410static void ice_free_irq_msix_misc(struct ice_pf *pf)3411{3412 int misc_irq_num = pf->oicr_irq.virq;3413 struct ice_hw *hw = &pf->hw;3414 3415 ice_dis_ctrlq_interrupts(hw);3416 3417 /* disable OICR interrupt */3418 wr32(hw, PFINT_OICR_ENA, 0);3419 ice_flush(hw);3420 3421 synchronize_irq(misc_irq_num);3422 devm_free_irq(ice_pf_to_dev(pf), misc_irq_num, pf);3423 3424 ice_free_irq(pf, pf->oicr_irq);3425 if (pf->hw.dev_caps.ts_dev_info.ts_ll_int_read)3426 ice_free_irq_msix_ll_ts(pf);3427}3428 3429/**3430 * ice_ena_ctrlq_interrupts - enable control queue interrupts3431 * @hw: pointer to HW structure3432 * @reg_idx: HW vector index to associate the control queue interrupts with3433 */3434static void ice_ena_ctrlq_interrupts(struct ice_hw *hw, u16 reg_idx)3435{3436 u32 val;3437 3438 val = ((reg_idx & PFINT_OICR_CTL_MSIX_INDX_M) |3439 PFINT_OICR_CTL_CAUSE_ENA_M);3440 wr32(hw, PFINT_OICR_CTL, val);3441 3442 /* enable Admin queue Interrupt causes */3443 val = ((reg_idx & PFINT_FW_CTL_MSIX_INDX_M) |3444 PFINT_FW_CTL_CAUSE_ENA_M);3445 wr32(hw, PFINT_FW_CTL, val);3446 3447 /* enable Mailbox queue Interrupt causes */3448 val = ((reg_idx & PFINT_MBX_CTL_MSIX_INDX_M) |3449 PFINT_MBX_CTL_CAUSE_ENA_M);3450 wr32(hw, PFINT_MBX_CTL, val);3451 3452 if (!hw->dev_caps.ts_dev_info.ts_ll_int_read) {3453 /* enable Sideband queue Interrupt causes */3454 val = ((reg_idx & PFINT_SB_CTL_MSIX_INDX_M) |3455 PFINT_SB_CTL_CAUSE_ENA_M);3456 wr32(hw, PFINT_SB_CTL, val);3457 }3458 3459 ice_flush(hw);3460}3461 3462/**3463 * ice_req_irq_msix_misc - Setup the misc vector to handle non queue events3464 * @pf: board private structure3465 *3466 * This sets up the handler for MSIX 0, which is used to manage the3467 * non-queue interrupts, e.g. AdminQ and errors. This is not used3468 * when in MSI or Legacy interrupt mode.3469 */3470static int ice_req_irq_msix_misc(struct ice_pf *pf)3471{3472 struct device *dev = ice_pf_to_dev(pf);3473 struct ice_hw *hw = &pf->hw;3474 u32 pf_intr_start_offset;3475 struct msi_map irq;3476 int err = 0;3477 3478 if (!pf->int_name[0])3479 snprintf(pf->int_name, sizeof(pf->int_name) - 1, "%s-%s:misc",3480 dev_driver_string(dev), dev_name(dev));3481 3482 if (!pf->int_name_ll_ts[0])3483 snprintf(pf->int_name_ll_ts, sizeof(pf->int_name_ll_ts) - 1,3484 "%s-%s:ll_ts", dev_driver_string(dev), dev_name(dev));3485 /* Do not request IRQ but do enable OICR interrupt since settings are3486 * lost during reset. Note that this function is called only during3487 * rebuild path and not while reset is in progress.3488 */3489 if (ice_is_reset_in_progress(pf->state))3490 goto skip_req_irq;3491 3492 /* reserve one vector in irq_tracker for misc interrupts */3493 irq = ice_alloc_irq(pf, false);3494 if (irq.index < 0)3495 return irq.index;3496 3497 pf->oicr_irq = irq;3498 err = devm_request_threaded_irq(dev, pf->oicr_irq.virq, ice_misc_intr,3499 ice_misc_intr_thread_fn, 0,3500 pf->int_name, pf);3501 if (err) {3502 dev_err(dev, "devm_request_threaded_irq for %s failed: %d\n",3503 pf->int_name, err);3504 ice_free_irq(pf, pf->oicr_irq);3505 return err;3506 }3507 3508 /* reserve one vector in irq_tracker for ll_ts interrupt */3509 if (!pf->hw.dev_caps.ts_dev_info.ts_ll_int_read)3510 goto skip_req_irq;3511 3512 irq = ice_alloc_irq(pf, false);3513 if (irq.index < 0)3514 return irq.index;3515 3516 pf->ll_ts_irq = irq;3517 err = devm_request_irq(dev, pf->ll_ts_irq.virq, ice_ll_ts_intr, 0,3518 pf->int_name_ll_ts, pf);3519 if (err) {3520 dev_err(dev, "devm_request_irq for %s failed: %d\n",3521 pf->int_name_ll_ts, err);3522 ice_free_irq(pf, pf->ll_ts_irq);3523 return err;3524 }3525 3526skip_req_irq:3527 ice_ena_misc_vector(pf);3528 3529 ice_ena_ctrlq_interrupts(hw, pf->oicr_irq.index);3530 /* This enables LL TS interrupt */3531 pf_intr_start_offset = rd32(hw, PFINT_ALLOC) & PFINT_ALLOC_FIRST;3532 if (pf->hw.dev_caps.ts_dev_info.ts_ll_int_read)3533 wr32(hw, PFINT_SB_CTL,3534 ((pf->ll_ts_irq.index + pf_intr_start_offset) &3535 PFINT_SB_CTL_MSIX_INDX_M) | PFINT_SB_CTL_CAUSE_ENA_M);3536 wr32(hw, GLINT_ITR(ICE_RX_ITR, pf->oicr_irq.index),3537 ITR_REG_ALIGN(ICE_ITR_8K) >> ICE_ITR_GRAN_S);3538 3539 ice_flush(hw);3540 ice_irq_dynamic_ena(hw, NULL, NULL);3541 3542 return 0;3543}3544 3545/**3546 * ice_set_ops - set netdev and ethtools ops for the given netdev3547 * @vsi: the VSI associated with the new netdev3548 */3549static void ice_set_ops(struct ice_vsi *vsi)3550{3551 struct net_device *netdev = vsi->netdev;3552 struct ice_pf *pf = ice_netdev_to_pf(netdev);3553 3554 if (ice_is_safe_mode(pf)) {3555 netdev->netdev_ops = &ice_netdev_safe_mode_ops;3556 ice_set_ethtool_safe_mode_ops(netdev);3557 return;3558 }3559 3560 netdev->netdev_ops = &ice_netdev_ops;3561 netdev->udp_tunnel_nic_info = &pf->hw.udp_tunnel_nic;3562 netdev->xdp_metadata_ops = &ice_xdp_md_ops;3563 ice_set_ethtool_ops(netdev);3564 3565 if (vsi->type != ICE_VSI_PF)3566 return;3567 3568 netdev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT |3569 NETDEV_XDP_ACT_XSK_ZEROCOPY |3570 NETDEV_XDP_ACT_RX_SG;3571 netdev->xdp_zc_max_segs = ICE_MAX_BUF_TXD;3572}3573 3574/**3575 * ice_set_netdev_features - set features for the given netdev3576 * @netdev: netdev instance3577 */3578void ice_set_netdev_features(struct net_device *netdev)3579{3580 struct ice_pf *pf = ice_netdev_to_pf(netdev);3581 bool is_dvm_ena = ice_is_dvm_ena(&pf->hw);3582 netdev_features_t csumo_features;3583 netdev_features_t vlano_features;3584 netdev_features_t dflt_features;3585 netdev_features_t tso_features;3586 3587 if (ice_is_safe_mode(pf)) {3588 /* safe mode */3589 netdev->features = NETIF_F_SG | NETIF_F_HIGHDMA;3590 netdev->hw_features = netdev->features;3591 return;3592 }3593 3594 dflt_features = NETIF_F_SG |3595 NETIF_F_HIGHDMA |3596 NETIF_F_NTUPLE |3597 NETIF_F_RXHASH;3598 3599 csumo_features = NETIF_F_RXCSUM |3600 NETIF_F_IP_CSUM |3601 NETIF_F_SCTP_CRC |3602 NETIF_F_IPV6_CSUM;3603 3604 vlano_features = NETIF_F_HW_VLAN_CTAG_FILTER |3605 NETIF_F_HW_VLAN_CTAG_TX |3606 NETIF_F_HW_VLAN_CTAG_RX;3607 3608 /* Enable CTAG/STAG filtering by default in Double VLAN Mode (DVM) */3609 if (is_dvm_ena)3610 vlano_features |= NETIF_F_HW_VLAN_STAG_FILTER;3611 3612 tso_features = NETIF_F_TSO |3613 NETIF_F_TSO_ECN |3614 NETIF_F_TSO6 |3615 NETIF_F_GSO_GRE |3616 NETIF_F_GSO_UDP_TUNNEL |3617 NETIF_F_GSO_GRE_CSUM |3618 NETIF_F_GSO_UDP_TUNNEL_CSUM |3619 NETIF_F_GSO_PARTIAL |3620 NETIF_F_GSO_IPXIP4 |3621 NETIF_F_GSO_IPXIP6 |3622 NETIF_F_GSO_UDP_L4;3623 3624 netdev->gso_partial_features |= NETIF_F_GSO_UDP_TUNNEL_CSUM |3625 NETIF_F_GSO_GRE_CSUM;3626 /* set features that user can change */3627 netdev->hw_features = dflt_features | csumo_features |3628 vlano_features | tso_features;3629 3630 /* add support for HW_CSUM on packets with MPLS header */3631 netdev->mpls_features = NETIF_F_HW_CSUM |3632 NETIF_F_TSO |3633 NETIF_F_TSO6;3634 3635 /* enable features */3636 netdev->features |= netdev->hw_features;3637 3638 netdev->hw_features |= NETIF_F_HW_TC;3639 netdev->hw_features |= NETIF_F_LOOPBACK;3640 3641 /* encap and VLAN devices inherit default, csumo and tso features */3642 netdev->hw_enc_features |= dflt_features | csumo_features |3643 tso_features;3644 netdev->vlan_features |= dflt_features | csumo_features |3645 tso_features;3646 3647 /* advertise support but don't enable by default since only one type of3648 * VLAN offload can be enabled at a time (i.e. CTAG or STAG). When one3649 * type turns on the other has to be turned off. This is enforced by the3650 * ice_fix_features() ndo callback.3651 */3652 if (is_dvm_ena)3653 netdev->hw_features |= NETIF_F_HW_VLAN_STAG_RX |3654 NETIF_F_HW_VLAN_STAG_TX;3655 3656 /* Leave CRC / FCS stripping enabled by default, but allow the value to3657 * be changed at runtime3658 */3659 netdev->hw_features |= NETIF_F_RXFCS;3660 3661 netif_set_tso_max_size(netdev, ICE_MAX_TSO_SIZE);3662}3663 3664/**3665 * ice_fill_rss_lut - Fill the RSS lookup table with default values3666 * @lut: Lookup table3667 * @rss_table_size: Lookup table size3668 * @rss_size: Range of queue number for hashing3669 */3670void ice_fill_rss_lut(u8 *lut, u16 rss_table_size, u16 rss_size)3671{3672 u16 i;3673 3674 for (i = 0; i < rss_table_size; i++)3675 lut[i] = i % rss_size;3676}3677 3678/**3679 * ice_pf_vsi_setup - Set up a PF VSI3680 * @pf: board private structure3681 * @pi: pointer to the port_info instance3682 *3683 * Returns pointer to the successfully allocated VSI software struct3684 * on success, otherwise returns NULL on failure.3685 */3686static struct ice_vsi *3687ice_pf_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi)3688{3689 struct ice_vsi_cfg_params params = {};3690 3691 params.type = ICE_VSI_PF;3692 params.port_info = pi;3693 params.flags = ICE_VSI_FLAG_INIT;3694 3695 return ice_vsi_setup(pf, ¶ms);3696}3697 3698static struct ice_vsi *3699ice_chnl_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi,3700 struct ice_channel *ch)3701{3702 struct ice_vsi_cfg_params params = {};3703 3704 params.type = ICE_VSI_CHNL;3705 params.port_info = pi;3706 params.ch = ch;3707 params.flags = ICE_VSI_FLAG_INIT;3708 3709 return ice_vsi_setup(pf, ¶ms);3710}3711 3712/**3713 * ice_ctrl_vsi_setup - Set up a control VSI3714 * @pf: board private structure3715 * @pi: pointer to the port_info instance3716 *3717 * Returns pointer to the successfully allocated VSI software struct3718 * on success, otherwise returns NULL on failure.3719 */3720static struct ice_vsi *3721ice_ctrl_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi)3722{3723 struct ice_vsi_cfg_params params = {};3724 3725 params.type = ICE_VSI_CTRL;3726 params.port_info = pi;3727 params.flags = ICE_VSI_FLAG_INIT;3728 3729 return ice_vsi_setup(pf, ¶ms);3730}3731 3732/**3733 * ice_lb_vsi_setup - Set up a loopback VSI3734 * @pf: board private structure3735 * @pi: pointer to the port_info instance3736 *3737 * Returns pointer to the successfully allocated VSI software struct3738 * on success, otherwise returns NULL on failure.3739 */3740struct ice_vsi *3741ice_lb_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi)3742{3743 struct ice_vsi_cfg_params params = {};3744 3745 params.type = ICE_VSI_LB;3746 params.port_info = pi;3747 params.flags = ICE_VSI_FLAG_INIT;3748 3749 return ice_vsi_setup(pf, ¶ms);3750}3751 3752/**3753 * ice_vlan_rx_add_vid - Add a VLAN ID filter to HW offload3754 * @netdev: network interface to be adjusted3755 * @proto: VLAN TPID3756 * @vid: VLAN ID to be added3757 *3758 * net_device_ops implementation for adding VLAN IDs3759 */3760int ice_vlan_rx_add_vid(struct net_device *netdev, __be16 proto, u16 vid)3761{3762 struct ice_netdev_priv *np = netdev_priv(netdev);3763 struct ice_vsi_vlan_ops *vlan_ops;3764 struct ice_vsi *vsi = np->vsi;3765 struct ice_vlan vlan;3766 int ret;3767 3768 /* VLAN 0 is added by default during load/reset */3769 if (!vid)3770 return 0;3771 3772 while (test_and_set_bit(ICE_CFG_BUSY, vsi->state))3773 usleep_range(1000, 2000);3774 3775 /* Add multicast promisc rule for the VLAN ID to be added if3776 * all-multicast is currently enabled.3777 */3778 if (vsi->current_netdev_flags & IFF_ALLMULTI) {3779 ret = ice_fltr_set_vsi_promisc(&vsi->back->hw, vsi->idx,3780 ICE_MCAST_VLAN_PROMISC_BITS,3781 vid);3782 if (ret)3783 goto finish;3784 }3785 3786 vlan_ops = ice_get_compat_vsi_vlan_ops(vsi);3787 3788 /* Add a switch rule for this VLAN ID so its corresponding VLAN tagged3789 * packets aren't pruned by the device's internal switch on Rx3790 */3791 vlan = ICE_VLAN(be16_to_cpu(proto), vid, 0);3792 ret = vlan_ops->add_vlan(vsi, &vlan);3793 if (ret)3794 goto finish;3795 3796 /* If all-multicast is currently enabled and this VLAN ID is only one3797 * besides VLAN-0 we have to update look-up type of multicast promisc3798 * rule for VLAN-0 from ICE_SW_LKUP_PROMISC to ICE_SW_LKUP_PROMISC_VLAN.3799 */3800 if ((vsi->current_netdev_flags & IFF_ALLMULTI) &&3801 ice_vsi_num_non_zero_vlans(vsi) == 1) {3802 ice_fltr_clear_vsi_promisc(&vsi->back->hw, vsi->idx,3803 ICE_MCAST_PROMISC_BITS, 0);3804 ice_fltr_set_vsi_promisc(&vsi->back->hw, vsi->idx,3805 ICE_MCAST_VLAN_PROMISC_BITS, 0);3806 }3807 3808finish:3809 clear_bit(ICE_CFG_BUSY, vsi->state);3810 3811 return ret;3812}3813 3814/**3815 * ice_vlan_rx_kill_vid - Remove a VLAN ID filter from HW offload3816 * @netdev: network interface to be adjusted3817 * @proto: VLAN TPID3818 * @vid: VLAN ID to be removed3819 *3820 * net_device_ops implementation for removing VLAN IDs3821 */3822int ice_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto, u16 vid)3823{3824 struct ice_netdev_priv *np = netdev_priv(netdev);3825 struct ice_vsi_vlan_ops *vlan_ops;3826 struct ice_vsi *vsi = np->vsi;3827 struct ice_vlan vlan;3828 int ret;3829 3830 /* don't allow removal of VLAN 0 */3831 if (!vid)3832 return 0;3833 3834 while (test_and_set_bit(ICE_CFG_BUSY, vsi->state))3835 usleep_range(1000, 2000);3836 3837 ret = ice_clear_vsi_promisc(&vsi->back->hw, vsi->idx,3838 ICE_MCAST_VLAN_PROMISC_BITS, vid);3839 if (ret) {3840 netdev_err(netdev, "Error clearing multicast promiscuous mode on VSI %i\n",3841 vsi->vsi_num);3842 vsi->current_netdev_flags |= IFF_ALLMULTI;3843 }3844 3845 vlan_ops = ice_get_compat_vsi_vlan_ops(vsi);3846 3847 /* Make sure VLAN delete is successful before updating VLAN3848 * information3849 */3850 vlan = ICE_VLAN(be16_to_cpu(proto), vid, 0);3851 ret = vlan_ops->del_vlan(vsi, &vlan);3852 if (ret)3853 goto finish;3854 3855 /* Remove multicast promisc rule for the removed VLAN ID if3856 * all-multicast is enabled.3857 */3858 if (vsi->current_netdev_flags & IFF_ALLMULTI)3859 ice_fltr_clear_vsi_promisc(&vsi->back->hw, vsi->idx,3860 ICE_MCAST_VLAN_PROMISC_BITS, vid);3861 3862 if (!ice_vsi_has_non_zero_vlans(vsi)) {3863 /* Update look-up type of multicast promisc rule for VLAN 03864 * from ICE_SW_LKUP_PROMISC_VLAN to ICE_SW_LKUP_PROMISC when3865 * all-multicast is enabled and VLAN 0 is the only VLAN rule.3866 */3867 if (vsi->current_netdev_flags & IFF_ALLMULTI) {3868 ice_fltr_clear_vsi_promisc(&vsi->back->hw, vsi->idx,3869 ICE_MCAST_VLAN_PROMISC_BITS,3870 0);3871 ice_fltr_set_vsi_promisc(&vsi->back->hw, vsi->idx,3872 ICE_MCAST_PROMISC_BITS, 0);3873 }3874 }3875 3876finish:3877 clear_bit(ICE_CFG_BUSY, vsi->state);3878 3879 return ret;3880}3881 3882/**3883 * ice_rep_indr_tc_block_unbind3884 * @cb_priv: indirection block private data3885 */3886static void ice_rep_indr_tc_block_unbind(void *cb_priv)3887{3888 struct ice_indr_block_priv *indr_priv = cb_priv;3889 3890 list_del(&indr_priv->list);3891 kfree(indr_priv);3892}3893 3894/**3895 * ice_tc_indir_block_unregister - Unregister TC indirect block notifications3896 * @vsi: VSI struct which has the netdev3897 */3898static void ice_tc_indir_block_unregister(struct ice_vsi *vsi)3899{3900 struct ice_netdev_priv *np = netdev_priv(vsi->netdev);3901 3902 flow_indr_dev_unregister(ice_indr_setup_tc_cb, np,3903 ice_rep_indr_tc_block_unbind);3904}3905 3906/**3907 * ice_tc_indir_block_register - Register TC indirect block notifications3908 * @vsi: VSI struct which has the netdev3909 *3910 * Returns 0 on success, negative value on failure3911 */3912static int ice_tc_indir_block_register(struct ice_vsi *vsi)3913{3914 struct ice_netdev_priv *np;3915 3916 if (!vsi || !vsi->netdev)3917 return -EINVAL;3918 3919 np = netdev_priv(vsi->netdev);3920 3921 INIT_LIST_HEAD(&np->tc_indr_block_priv_list);3922 return flow_indr_dev_register(ice_indr_setup_tc_cb, np);3923}3924 3925/**3926 * ice_get_avail_q_count - Get count of queues in use3927 * @pf_qmap: bitmap to get queue use count from3928 * @lock: pointer to a mutex that protects access to pf_qmap3929 * @size: size of the bitmap3930 */3931static u163932ice_get_avail_q_count(unsigned long *pf_qmap, struct mutex *lock, u16 size)3933{3934 unsigned long bit;3935 u16 count = 0;3936 3937 mutex_lock(lock);3938 for_each_clear_bit(bit, pf_qmap, size)3939 count++;3940 mutex_unlock(lock);3941 3942 return count;3943}3944 3945/**3946 * ice_get_avail_txq_count - Get count of Tx queues in use3947 * @pf: pointer to an ice_pf instance3948 */3949u16 ice_get_avail_txq_count(struct ice_pf *pf)3950{3951 return ice_get_avail_q_count(pf->avail_txqs, &pf->avail_q_mutex,3952 pf->max_pf_txqs);3953}3954 3955/**3956 * ice_get_avail_rxq_count - Get count of Rx queues in use3957 * @pf: pointer to an ice_pf instance3958 */3959u16 ice_get_avail_rxq_count(struct ice_pf *pf)3960{3961 return ice_get_avail_q_count(pf->avail_rxqs, &pf->avail_q_mutex,3962 pf->max_pf_rxqs);3963}3964 3965/**3966 * ice_deinit_pf - Unrolls initialziations done by ice_init_pf3967 * @pf: board private structure to initialize3968 */3969static void ice_deinit_pf(struct ice_pf *pf)3970{3971 ice_service_task_stop(pf);3972 mutex_destroy(&pf->lag_mutex);3973 mutex_destroy(&pf->adev_mutex);3974 mutex_destroy(&pf->sw_mutex);3975 mutex_destroy(&pf->tc_mutex);3976 mutex_destroy(&pf->avail_q_mutex);3977 mutex_destroy(&pf->vfs.table_lock);3978 3979 if (pf->avail_txqs) {3980 bitmap_free(pf->avail_txqs);3981 pf->avail_txqs = NULL;3982 }3983 3984 if (pf->avail_rxqs) {3985 bitmap_free(pf->avail_rxqs);3986 pf->avail_rxqs = NULL;3987 }3988 3989 if (pf->ptp.clock)3990 ptp_clock_unregister(pf->ptp.clock);3991 3992 xa_destroy(&pf->dyn_ports);3993 xa_destroy(&pf->sf_nums);3994}3995 3996/**3997 * ice_set_pf_caps - set PFs capability flags3998 * @pf: pointer to the PF instance3999 */4000static void ice_set_pf_caps(struct ice_pf *pf)4001{4002 struct ice_hw_func_caps *func_caps = &pf->hw.func_caps;4003 4004 clear_bit(ICE_FLAG_RDMA_ENA, pf->flags);4005 if (func_caps->common_cap.rdma)4006 set_bit(ICE_FLAG_RDMA_ENA, pf->flags);4007 clear_bit(ICE_FLAG_DCB_CAPABLE, pf->flags);4008 if (func_caps->common_cap.dcb)4009 set_bit(ICE_FLAG_DCB_CAPABLE, pf->flags);4010 clear_bit(ICE_FLAG_SRIOV_CAPABLE, pf->flags);4011 if (func_caps->common_cap.sr_iov_1_1) {4012 set_bit(ICE_FLAG_SRIOV_CAPABLE, pf->flags);4013 pf->vfs.num_supported = min_t(int, func_caps->num_allocd_vfs,4014 ICE_MAX_SRIOV_VFS);4015 }4016 clear_bit(ICE_FLAG_RSS_ENA, pf->flags);4017 if (func_caps->common_cap.rss_table_size)4018 set_bit(ICE_FLAG_RSS_ENA, pf->flags);4019 4020 clear_bit(ICE_FLAG_FD_ENA, pf->flags);4021 if (func_caps->fd_fltr_guar > 0 || func_caps->fd_fltr_best_effort > 0) {4022 u16 unused;4023 4024 /* ctrl_vsi_idx will be set to a valid value when flow director4025 * is setup by ice_init_fdir4026 */4027 pf->ctrl_vsi_idx = ICE_NO_VSI;4028 set_bit(ICE_FLAG_FD_ENA, pf->flags);4029 /* force guaranteed filter pool for PF */4030 ice_alloc_fd_guar_item(&pf->hw, &unused,4031 func_caps->fd_fltr_guar);4032 /* force shared filter pool for PF */4033 ice_alloc_fd_shrd_item(&pf->hw, &unused,4034 func_caps->fd_fltr_best_effort);4035 }4036 4037 clear_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags);4038 if (func_caps->common_cap.ieee_1588 &&4039 !(pf->hw.mac_type == ICE_MAC_E830))4040 set_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags);4041 4042 pf->max_pf_txqs = func_caps->common_cap.num_txq;4043 pf->max_pf_rxqs = func_caps->common_cap.num_rxq;4044}4045 4046/**4047 * ice_init_pf - Initialize general software structures (struct ice_pf)4048 * @pf: board private structure to initialize4049 */4050static int ice_init_pf(struct ice_pf *pf)4051{4052 ice_set_pf_caps(pf);4053 4054 mutex_init(&pf->sw_mutex);4055 mutex_init(&pf->tc_mutex);4056 mutex_init(&pf->adev_mutex);4057 mutex_init(&pf->lag_mutex);4058 4059 INIT_HLIST_HEAD(&pf->aq_wait_list);4060 spin_lock_init(&pf->aq_wait_lock);4061 init_waitqueue_head(&pf->aq_wait_queue);4062 4063 init_waitqueue_head(&pf->reset_wait_queue);4064 4065 /* setup service timer and periodic service task */4066 timer_setup(&pf->serv_tmr, ice_service_timer, 0);4067 pf->serv_tmr_period = HZ;4068 INIT_WORK(&pf->serv_task, ice_service_task);4069 clear_bit(ICE_SERVICE_SCHED, pf->state);4070 4071 mutex_init(&pf->avail_q_mutex);4072 pf->avail_txqs = bitmap_zalloc(pf->max_pf_txqs, GFP_KERNEL);4073 if (!pf->avail_txqs)4074 return -ENOMEM;4075 4076 pf->avail_rxqs = bitmap_zalloc(pf->max_pf_rxqs, GFP_KERNEL);4077 if (!pf->avail_rxqs) {4078 bitmap_free(pf->avail_txqs);4079 pf->avail_txqs = NULL;4080 return -ENOMEM;4081 }4082 4083 mutex_init(&pf->vfs.table_lock);4084 hash_init(pf->vfs.table);4085 ice_mbx_init_snapshot(&pf->hw);4086 4087 xa_init(&pf->dyn_ports);4088 xa_init(&pf->sf_nums);4089 4090 return 0;4091}4092 4093/**4094 * ice_is_wol_supported - check if WoL is supported4095 * @hw: pointer to hardware info4096 *4097 * Check if WoL is supported based on the HW configuration.4098 * Returns true if NVM supports and enables WoL for this port, false otherwise4099 */4100bool ice_is_wol_supported(struct ice_hw *hw)4101{4102 u16 wol_ctrl;4103 4104 /* A bit set to 1 in the NVM Software Reserved Word 2 (WoL control4105 * word) indicates WoL is not supported on the corresponding PF ID.4106 */4107 if (ice_read_sr_word(hw, ICE_SR_NVM_WOL_CFG, &wol_ctrl))4108 return false;4109 4110 return !(BIT(hw->port_info->lport) & wol_ctrl);4111}4112 4113/**4114 * ice_vsi_recfg_qs - Change the number of queues on a VSI4115 * @vsi: VSI being changed4116 * @new_rx: new number of Rx queues4117 * @new_tx: new number of Tx queues4118 * @locked: is adev device_lock held4119 *4120 * Only change the number of queues if new_tx, or new_rx is non-0.4121 *4122 * Returns 0 on success.4123 */4124int ice_vsi_recfg_qs(struct ice_vsi *vsi, int new_rx, int new_tx, bool locked)4125{4126 struct ice_pf *pf = vsi->back;4127 int i, err = 0, timeout = 50;4128 4129 if (!new_rx && !new_tx)4130 return -EINVAL;4131 4132 while (test_and_set_bit(ICE_CFG_BUSY, pf->state)) {4133 timeout--;4134 if (!timeout)4135 return -EBUSY;4136 usleep_range(1000, 2000);4137 }4138 4139 if (new_tx)4140 vsi->req_txq = (u16)new_tx;4141 if (new_rx)4142 vsi->req_rxq = (u16)new_rx;4143 4144 /* set for the next time the netdev is started */4145 if (!netif_running(vsi->netdev)) {4146 err = ice_vsi_rebuild(vsi, ICE_VSI_FLAG_NO_INIT);4147 if (err)4148 goto rebuild_err;4149 dev_dbg(ice_pf_to_dev(pf), "Link is down, queue count change happens when link is brought up\n");4150 goto done;4151 }4152 4153 ice_vsi_close(vsi);4154 err = ice_vsi_rebuild(vsi, ICE_VSI_FLAG_NO_INIT);4155 if (err)4156 goto rebuild_err;4157 4158 ice_for_each_traffic_class(i) {4159 if (vsi->tc_cfg.ena_tc & BIT(i))4160 netdev_set_tc_queue(vsi->netdev,4161 vsi->tc_cfg.tc_info[i].netdev_tc,4162 vsi->tc_cfg.tc_info[i].qcount_tx,4163 vsi->tc_cfg.tc_info[i].qoffset);4164 }4165 ice_pf_dcb_recfg(pf, locked);4166 ice_vsi_open(vsi);4167 goto done;4168 4169rebuild_err:4170 dev_err(ice_pf_to_dev(pf), "Error during VSI rebuild: %d. Unload and reload the driver.\n",4171 err);4172done:4173 clear_bit(ICE_CFG_BUSY, pf->state);4174 return err;4175}4176 4177/**4178 * ice_set_safe_mode_vlan_cfg - configure PF VSI to allow all VLANs in safe mode4179 * @pf: PF to configure4180 *4181 * No VLAN offloads/filtering are advertised in safe mode so make sure the PF4182 * VSI can still Tx/Rx VLAN tagged packets.4183 */4184static void ice_set_safe_mode_vlan_cfg(struct ice_pf *pf)4185{4186 struct ice_vsi *vsi = ice_get_main_vsi(pf);4187 struct ice_vsi_ctx *ctxt;4188 struct ice_hw *hw;4189 int status;4190 4191 if (!vsi)4192 return;4193 4194 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);4195 if (!ctxt)4196 return;4197 4198 hw = &pf->hw;4199 ctxt->info = vsi->info;4200 4201 ctxt->info.valid_sections =4202 cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID |4203 ICE_AQ_VSI_PROP_SECURITY_VALID |4204 ICE_AQ_VSI_PROP_SW_VALID);4205 4206 /* disable VLAN anti-spoof */4207 ctxt->info.sec_flags &= ~(ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA <<4208 ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S);4209 4210 /* disable VLAN pruning and keep all other settings */4211 ctxt->info.sw_flags2 &= ~ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA;4212 4213 /* allow all VLANs on Tx and don't strip on Rx */4214 ctxt->info.inner_vlan_flags = ICE_AQ_VSI_INNER_VLAN_TX_MODE_ALL |4215 ICE_AQ_VSI_INNER_VLAN_EMODE_NOTHING;4216 4217 status = ice_update_vsi(hw, vsi->idx, ctxt, NULL);4218 if (status) {4219 dev_err(ice_pf_to_dev(vsi->back), "Failed to update VSI for safe mode VLANs, err %d aq_err %s\n",4220 status, ice_aq_str(hw->adminq.sq_last_status));4221 } else {4222 vsi->info.sec_flags = ctxt->info.sec_flags;4223 vsi->info.sw_flags2 = ctxt->info.sw_flags2;4224 vsi->info.inner_vlan_flags = ctxt->info.inner_vlan_flags;4225 }4226 4227 kfree(ctxt);4228}4229 4230/**4231 * ice_log_pkg_init - log result of DDP package load4232 * @hw: pointer to hardware info4233 * @state: state of package load4234 */4235static void ice_log_pkg_init(struct ice_hw *hw, enum ice_ddp_state state)4236{4237 struct ice_pf *pf = hw->back;4238 struct device *dev;4239 4240 dev = ice_pf_to_dev(pf);4241 4242 switch (state) {4243 case ICE_DDP_PKG_SUCCESS:4244 dev_info(dev, "The DDP package was successfully loaded: %s version %d.%d.%d.%d\n",4245 hw->active_pkg_name,4246 hw->active_pkg_ver.major,4247 hw->active_pkg_ver.minor,4248 hw->active_pkg_ver.update,4249 hw->active_pkg_ver.draft);4250 break;4251 case ICE_DDP_PKG_SAME_VERSION_ALREADY_LOADED:4252 dev_info(dev, "DDP package already present on device: %s version %d.%d.%d.%d\n",4253 hw->active_pkg_name,4254 hw->active_pkg_ver.major,4255 hw->active_pkg_ver.minor,4256 hw->active_pkg_ver.update,4257 hw->active_pkg_ver.draft);4258 break;4259 case ICE_DDP_PKG_ALREADY_LOADED_NOT_SUPPORTED:4260 dev_err(dev, "The device has a DDP package that is not supported by the driver. The device has package '%s' version %d.%d.x.x. The driver requires version %d.%d.x.x. Entering Safe Mode.\n",4261 hw->active_pkg_name,4262 hw->active_pkg_ver.major,4263 hw->active_pkg_ver.minor,4264 ICE_PKG_SUPP_VER_MAJ, ICE_PKG_SUPP_VER_MNR);4265 break;4266 case ICE_DDP_PKG_COMPATIBLE_ALREADY_LOADED:4267 dev_info(dev, "The driver could not load the DDP package file because a compatible DDP package is already present on the device. The device has package '%s' version %d.%d.%d.%d. The package file found by the driver: '%s' version %d.%d.%d.%d.\n",4268 hw->active_pkg_name,4269 hw->active_pkg_ver.major,4270 hw->active_pkg_ver.minor,4271 hw->active_pkg_ver.update,4272 hw->active_pkg_ver.draft,4273 hw->pkg_name,4274 hw->pkg_ver.major,4275 hw->pkg_ver.minor,4276 hw->pkg_ver.update,4277 hw->pkg_ver.draft);4278 break;4279 case ICE_DDP_PKG_FW_MISMATCH:4280 dev_err(dev, "The firmware loaded on the device is not compatible with the DDP package. Please update the device's NVM. Entering safe mode.\n");4281 break;4282 case ICE_DDP_PKG_INVALID_FILE:4283 dev_err(dev, "The DDP package file is invalid. Entering Safe Mode.\n");4284 break;4285 case ICE_DDP_PKG_FILE_VERSION_TOO_HIGH:4286 dev_err(dev, "The DDP package file version is higher than the driver supports. Please use an updated driver. Entering Safe Mode.\n");4287 break;4288 case ICE_DDP_PKG_FILE_VERSION_TOO_LOW:4289 dev_err(dev, "The DDP package file version is lower than the driver supports. The driver requires version %d.%d.x.x. Please use an updated DDP Package file. Entering Safe Mode.\n",4290 ICE_PKG_SUPP_VER_MAJ, ICE_PKG_SUPP_VER_MNR);4291 break;4292 case ICE_DDP_PKG_FILE_SIGNATURE_INVALID:4293 dev_err(dev, "The DDP package could not be loaded because its signature is not valid. Please use a valid DDP Package. Entering Safe Mode.\n");4294 break;4295 case ICE_DDP_PKG_FILE_REVISION_TOO_LOW:4296 dev_err(dev, "The DDP Package could not be loaded because its security revision is too low. Please use an updated DDP Package. Entering Safe Mode.\n");4297 break;4298 case ICE_DDP_PKG_LOAD_ERROR:4299 dev_err(dev, "An error occurred on the device while loading the DDP package. The device will be reset.\n");4300 /* poll for reset to complete */4301 if (ice_check_reset(hw))4302 dev_err(dev, "Error resetting device. Please reload the driver\n");4303 break;4304 case ICE_DDP_PKG_ERR:4305 default:4306 dev_err(dev, "An unknown error occurred when loading the DDP package. Entering Safe Mode.\n");4307 break;4308 }4309}4310 4311/**4312 * ice_load_pkg - load/reload the DDP Package file4313 * @firmware: firmware structure when firmware requested or NULL for reload4314 * @pf: pointer to the PF instance4315 *4316 * Called on probe and post CORER/GLOBR rebuild to load DDP Package and4317 * initialize HW tables.4318 */4319static void4320ice_load_pkg(const struct firmware *firmware, struct ice_pf *pf)4321{4322 enum ice_ddp_state state = ICE_DDP_PKG_ERR;4323 struct device *dev = ice_pf_to_dev(pf);4324 struct ice_hw *hw = &pf->hw;4325 4326 /* Load DDP Package */4327 if (firmware && !hw->pkg_copy) {4328 state = ice_copy_and_init_pkg(hw, firmware->data,4329 firmware->size);4330 ice_log_pkg_init(hw, state);4331 } else if (!firmware && hw->pkg_copy) {4332 /* Reload package during rebuild after CORER/GLOBR reset */4333 state = ice_init_pkg(hw, hw->pkg_copy, hw->pkg_size);4334 ice_log_pkg_init(hw, state);4335 } else {4336 dev_err(dev, "The DDP package file failed to load. Entering Safe Mode.\n");4337 }4338 4339 if (!ice_is_init_pkg_successful(state)) {4340 /* Safe Mode */4341 clear_bit(ICE_FLAG_ADV_FEATURES, pf->flags);4342 return;4343 }4344 4345 /* Successful download package is the precondition for advanced4346 * features, hence setting the ICE_FLAG_ADV_FEATURES flag4347 */4348 set_bit(ICE_FLAG_ADV_FEATURES, pf->flags);4349}4350 4351/**4352 * ice_verify_cacheline_size - verify driver's assumption of 64 Byte cache lines4353 * @pf: pointer to the PF structure4354 *4355 * There is no error returned here because the driver should be able to handle4356 * 128 Byte cache lines, so we only print a warning in case issues are seen,4357 * specifically with Tx.4358 */4359static void ice_verify_cacheline_size(struct ice_pf *pf)4360{4361 if (rd32(&pf->hw, GLPCI_CNF2) & GLPCI_CNF2_CACHELINE_SIZE_M)4362 dev_warn(ice_pf_to_dev(pf), "%d Byte cache line assumption is invalid, driver may have Tx timeouts!\n",4363 ICE_CACHE_LINE_BYTES);4364}4365 4366/**4367 * ice_send_version - update firmware with driver version4368 * @pf: PF struct4369 *4370 * Returns 0 on success, else error code4371 */4372static int ice_send_version(struct ice_pf *pf)4373{4374 struct ice_driver_ver dv;4375 4376 dv.major_ver = 0xff;4377 dv.minor_ver = 0xff;4378 dv.build_ver = 0xff;4379 dv.subbuild_ver = 0;4380 strscpy((char *)dv.driver_string, UTS_RELEASE,4381 sizeof(dv.driver_string));4382 return ice_aq_send_driver_ver(&pf->hw, &dv, NULL);4383}4384 4385/**4386 * ice_init_fdir - Initialize flow director VSI and configuration4387 * @pf: pointer to the PF instance4388 *4389 * returns 0 on success, negative on error4390 */4391static int ice_init_fdir(struct ice_pf *pf)4392{4393 struct device *dev = ice_pf_to_dev(pf);4394 struct ice_vsi *ctrl_vsi;4395 int err;4396 4397 /* Side Band Flow Director needs to have a control VSI.4398 * Allocate it and store it in the PF.4399 */4400 ctrl_vsi = ice_ctrl_vsi_setup(pf, pf->hw.port_info);4401 if (!ctrl_vsi) {4402 dev_dbg(dev, "could not create control VSI\n");4403 return -ENOMEM;4404 }4405 4406 err = ice_vsi_open_ctrl(ctrl_vsi);4407 if (err) {4408 dev_dbg(dev, "could not open control VSI\n");4409 goto err_vsi_open;4410 }4411 4412 mutex_init(&pf->hw.fdir_fltr_lock);4413 4414 err = ice_fdir_create_dflt_rules(pf);4415 if (err)4416 goto err_fdir_rule;4417 4418 return 0;4419 4420err_fdir_rule:4421 ice_fdir_release_flows(&pf->hw);4422 ice_vsi_close(ctrl_vsi);4423err_vsi_open:4424 ice_vsi_release(ctrl_vsi);4425 if (pf->ctrl_vsi_idx != ICE_NO_VSI) {4426 pf->vsi[pf->ctrl_vsi_idx] = NULL;4427 pf->ctrl_vsi_idx = ICE_NO_VSI;4428 }4429 return err;4430}4431 4432static void ice_deinit_fdir(struct ice_pf *pf)4433{4434 struct ice_vsi *vsi = ice_get_ctrl_vsi(pf);4435 4436 if (!vsi)4437 return;4438 4439 ice_vsi_manage_fdir(vsi, false);4440 ice_vsi_release(vsi);4441 if (pf->ctrl_vsi_idx != ICE_NO_VSI) {4442 pf->vsi[pf->ctrl_vsi_idx] = NULL;4443 pf->ctrl_vsi_idx = ICE_NO_VSI;4444 }4445 4446 mutex_destroy(&(&pf->hw)->fdir_fltr_lock);4447}4448 4449/**4450 * ice_get_opt_fw_name - return optional firmware file name or NULL4451 * @pf: pointer to the PF instance4452 */4453static char *ice_get_opt_fw_name(struct ice_pf *pf)4454{4455 /* Optional firmware name same as default with additional dash4456 * followed by a EUI-64 identifier (PCIe Device Serial Number)4457 */4458 struct pci_dev *pdev = pf->pdev;4459 char *opt_fw_filename;4460 u64 dsn;4461 4462 /* Determine the name of the optional file using the DSN (two4463 * dwords following the start of the DSN Capability).4464 */4465 dsn = pci_get_dsn(pdev);4466 if (!dsn)4467 return NULL;4468 4469 opt_fw_filename = kzalloc(NAME_MAX, GFP_KERNEL);4470 if (!opt_fw_filename)4471 return NULL;4472 4473 snprintf(opt_fw_filename, NAME_MAX, "%sice-%016llx.pkg",4474 ICE_DDP_PKG_PATH, dsn);4475 4476 return opt_fw_filename;4477}4478 4479/**4480 * ice_request_fw - Device initialization routine4481 * @pf: pointer to the PF instance4482 * @firmware: double pointer to firmware struct4483 *4484 * Return: zero when successful, negative values otherwise.4485 */4486static int ice_request_fw(struct ice_pf *pf, const struct firmware **firmware)4487{4488 char *opt_fw_filename = ice_get_opt_fw_name(pf);4489 struct device *dev = ice_pf_to_dev(pf);4490 int err = 0;4491 4492 /* optional device-specific DDP (if present) overrides the default DDP4493 * package file. kernel logs a debug message if the file doesn't exist,4494 * and warning messages for other errors.4495 */4496 if (opt_fw_filename) {4497 err = firmware_request_nowarn(firmware, opt_fw_filename, dev);4498 kfree(opt_fw_filename);4499 if (!err)4500 return err;4501 }4502 err = request_firmware(firmware, ICE_DDP_PKG_FILE, dev);4503 if (err)4504 dev_err(dev, "The DDP package file was not found or could not be read. Entering Safe Mode\n");4505 4506 return err;4507}4508 4509/**4510 * ice_init_tx_topology - performs Tx topology initialization4511 * @hw: pointer to the hardware structure4512 * @firmware: pointer to firmware structure4513 *4514 * Return: zero when init was successful, negative values otherwise.4515 */4516static int4517ice_init_tx_topology(struct ice_hw *hw, const struct firmware *firmware)4518{4519 u8 num_tx_sched_layers = hw->num_tx_sched_layers;4520 struct ice_pf *pf = hw->back;4521 struct device *dev;4522 int err;4523 4524 dev = ice_pf_to_dev(pf);4525 err = ice_cfg_tx_topo(hw, firmware->data, firmware->size);4526 if (!err) {4527 if (hw->num_tx_sched_layers > num_tx_sched_layers)4528 dev_info(dev, "Tx scheduling layers switching feature disabled\n");4529 else4530 dev_info(dev, "Tx scheduling layers switching feature enabled\n");4531 /* if there was a change in topology ice_cfg_tx_topo triggered4532 * a CORER and we need to re-init hw4533 */4534 ice_deinit_hw(hw);4535 err = ice_init_hw(hw);4536 4537 return err;4538 } else if (err == -EIO) {4539 dev_info(dev, "DDP package does not support Tx scheduling layers switching feature - please update to the latest DDP package and try again\n");4540 }4541 4542 return 0;4543}4544 4545/**4546 * ice_init_ddp_config - DDP related configuration4547 * @hw: pointer to the hardware structure4548 * @pf: pointer to pf structure4549 *4550 * This function loads DDP file from the disk, then initializes Tx4551 * topology. At the end DDP package is loaded on the card.4552 *4553 * Return: zero when init was successful, negative values otherwise.4554 */4555static int ice_init_ddp_config(struct ice_hw *hw, struct ice_pf *pf)4556{4557 struct device *dev = ice_pf_to_dev(pf);4558 const struct firmware *firmware = NULL;4559 int err;4560 4561 err = ice_request_fw(pf, &firmware);4562 if (err) {4563 dev_err(dev, "Fail during requesting FW: %d\n", err);4564 return err;4565 }4566 4567 err = ice_init_tx_topology(hw, firmware);4568 if (err) {4569 dev_err(dev, "Fail during initialization of Tx topology: %d\n",4570 err);4571 release_firmware(firmware);4572 return err;4573 }4574 4575 /* Download firmware to device */4576 ice_load_pkg(firmware, pf);4577 release_firmware(firmware);4578 4579 return 0;4580}4581 4582/**4583 * ice_print_wake_reason - show the wake up cause in the log4584 * @pf: pointer to the PF struct4585 */4586static void ice_print_wake_reason(struct ice_pf *pf)4587{4588 u32 wus = pf->wakeup_reason;4589 const char *wake_str;4590 4591 /* if no wake event, nothing to print */4592 if (!wus)4593 return;4594 4595 if (wus & PFPM_WUS_LNKC_M)4596 wake_str = "Link\n";4597 else if (wus & PFPM_WUS_MAG_M)4598 wake_str = "Magic Packet\n";4599 else if (wus & PFPM_WUS_MNG_M)4600 wake_str = "Management\n";4601 else if (wus & PFPM_WUS_FW_RST_WK_M)4602 wake_str = "Firmware Reset\n";4603 else4604 wake_str = "Unknown\n";4605 4606 dev_info(ice_pf_to_dev(pf), "Wake reason: %s", wake_str);4607}4608 4609/**4610 * ice_pf_fwlog_update_module - update 1 module4611 * @pf: pointer to the PF struct4612 * @log_level: log_level to use for the @module4613 * @module: module to update4614 */4615void ice_pf_fwlog_update_module(struct ice_pf *pf, int log_level, int module)4616{4617 struct ice_hw *hw = &pf->hw;4618 4619 hw->fwlog_cfg.module_entries[module].log_level = log_level;4620}4621 4622/**4623 * ice_register_netdev - register netdev4624 * @vsi: pointer to the VSI struct4625 */4626static int ice_register_netdev(struct ice_vsi *vsi)4627{4628 int err;4629 4630 if (!vsi || !vsi->netdev)4631 return -EIO;4632 4633 err = register_netdev(vsi->netdev);4634 if (err)4635 return err;4636 4637 set_bit(ICE_VSI_NETDEV_REGISTERED, vsi->state);4638 netif_carrier_off(vsi->netdev);4639 netif_tx_stop_all_queues(vsi->netdev);4640 4641 return 0;4642}4643 4644static void ice_unregister_netdev(struct ice_vsi *vsi)4645{4646 if (!vsi || !vsi->netdev)4647 return;4648 4649 unregister_netdev(vsi->netdev);4650 clear_bit(ICE_VSI_NETDEV_REGISTERED, vsi->state);4651}4652 4653/**4654 * ice_cfg_netdev - Allocate, configure and register a netdev4655 * @vsi: the VSI associated with the new netdev4656 *4657 * Returns 0 on success, negative value on failure4658 */4659static int ice_cfg_netdev(struct ice_vsi *vsi)4660{4661 struct ice_netdev_priv *np;4662 struct net_device *netdev;4663 u8 mac_addr[ETH_ALEN];4664 4665 netdev = alloc_etherdev_mqs(sizeof(*np), vsi->alloc_txq,4666 vsi->alloc_rxq);4667 if (!netdev)4668 return -ENOMEM;4669 4670 set_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state);4671 vsi->netdev = netdev;4672 np = netdev_priv(netdev);4673 np->vsi = vsi;4674 4675 ice_set_netdev_features(netdev);4676 ice_set_ops(vsi);4677 4678 if (vsi->type == ICE_VSI_PF) {4679 SET_NETDEV_DEV(netdev, ice_pf_to_dev(vsi->back));4680 ether_addr_copy(mac_addr, vsi->port_info->mac.perm_addr);4681 eth_hw_addr_set(netdev, mac_addr);4682 }4683 4684 netdev->priv_flags |= IFF_UNICAST_FLT;4685 4686 /* Setup netdev TC information */4687 ice_vsi_cfg_netdev_tc(vsi, vsi->tc_cfg.ena_tc);4688 4689 netdev->max_mtu = ICE_MAX_MTU;4690 4691 return 0;4692}4693 4694static void ice_decfg_netdev(struct ice_vsi *vsi)4695{4696 clear_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state);4697 free_netdev(vsi->netdev);4698 vsi->netdev = NULL;4699}4700 4701/**4702 * ice_wait_for_fw - wait for full FW readiness4703 * @hw: pointer to the hardware structure4704 * @timeout: milliseconds that can elapse before timing out4705 */4706static int ice_wait_for_fw(struct ice_hw *hw, u32 timeout)4707{4708 int fw_loading;4709 u32 elapsed = 0;4710 4711 while (elapsed <= timeout) {4712 fw_loading = rd32(hw, GL_MNG_FWSM) & GL_MNG_FWSM_FW_LOADING_M;4713 4714 /* firmware was not yet loaded, we have to wait more */4715 if (fw_loading) {4716 elapsed += 100;4717 msleep(100);4718 continue;4719 }4720 return 0;4721 }4722 4723 return -ETIMEDOUT;4724}4725 4726int ice_init_dev(struct ice_pf *pf)4727{4728 struct device *dev = ice_pf_to_dev(pf);4729 struct ice_hw *hw = &pf->hw;4730 int err;4731 4732 err = ice_init_hw(hw);4733 if (err) {4734 dev_err(dev, "ice_init_hw failed: %d\n", err);4735 return err;4736 }4737 4738 /* Some cards require longer initialization times4739 * due to necessity of loading FW from an external source.4740 * This can take even half a minute.4741 */4742 if (ice_is_pf_c827(hw)) {4743 err = ice_wait_for_fw(hw, 30000);4744 if (err) {4745 dev_err(dev, "ice_wait_for_fw timed out");4746 return err;4747 }4748 }4749 4750 ice_init_feature_support(pf);4751 4752 err = ice_init_ddp_config(hw, pf);4753 4754 /* if ice_init_ddp_config fails, ICE_FLAG_ADV_FEATURES bit won't be4755 * set in pf->state, which will cause ice_is_safe_mode to return4756 * true4757 */4758 if (err || ice_is_safe_mode(pf)) {4759 /* we already got function/device capabilities but these don't4760 * reflect what the driver needs to do in safe mode. Instead of4761 * adding conditional logic everywhere to ignore these4762 * device/function capabilities, override them.4763 */4764 ice_set_safe_mode_caps(hw);4765 }4766 4767 err = ice_init_pf(pf);4768 if (err) {4769 dev_err(dev, "ice_init_pf failed: %d\n", err);4770 goto err_init_pf;4771 }4772 4773 pf->hw.udp_tunnel_nic.set_port = ice_udp_tunnel_set_port;4774 pf->hw.udp_tunnel_nic.unset_port = ice_udp_tunnel_unset_port;4775 pf->hw.udp_tunnel_nic.flags = UDP_TUNNEL_NIC_INFO_MAY_SLEEP;4776 pf->hw.udp_tunnel_nic.shared = &pf->hw.udp_tunnel_shared;4777 if (pf->hw.tnl.valid_count[TNL_VXLAN]) {4778 pf->hw.udp_tunnel_nic.tables[0].n_entries =4779 pf->hw.tnl.valid_count[TNL_VXLAN];4780 pf->hw.udp_tunnel_nic.tables[0].tunnel_types =4781 UDP_TUNNEL_TYPE_VXLAN;4782 }4783 if (pf->hw.tnl.valid_count[TNL_GENEVE]) {4784 pf->hw.udp_tunnel_nic.tables[1].n_entries =4785 pf->hw.tnl.valid_count[TNL_GENEVE];4786 pf->hw.udp_tunnel_nic.tables[1].tunnel_types =4787 UDP_TUNNEL_TYPE_GENEVE;4788 }4789 4790 err = ice_init_interrupt_scheme(pf);4791 if (err) {4792 dev_err(dev, "ice_init_interrupt_scheme failed: %d\n", err);4793 err = -EIO;4794 goto err_init_interrupt_scheme;4795 }4796 4797 /* In case of MSIX we are going to setup the misc vector right here4798 * to handle admin queue events etc. In case of legacy and MSI4799 * the misc functionality and queue processing is combined in4800 * the same vector and that gets setup at open.4801 */4802 err = ice_req_irq_msix_misc(pf);4803 if (err) {4804 dev_err(dev, "setup of misc vector failed: %d\n", err);4805 goto err_req_irq_msix_misc;4806 }4807 4808 return 0;4809 4810err_req_irq_msix_misc:4811 ice_clear_interrupt_scheme(pf);4812err_init_interrupt_scheme:4813 ice_deinit_pf(pf);4814err_init_pf:4815 ice_deinit_hw(hw);4816 return err;4817}4818 4819void ice_deinit_dev(struct ice_pf *pf)4820{4821 ice_free_irq_msix_misc(pf);4822 ice_deinit_pf(pf);4823 ice_deinit_hw(&pf->hw);4824 4825 /* Service task is already stopped, so call reset directly. */4826 ice_reset(&pf->hw, ICE_RESET_PFR);4827 pci_wait_for_pending_transaction(pf->pdev);4828 ice_clear_interrupt_scheme(pf);4829}4830 4831static void ice_init_features(struct ice_pf *pf)4832{4833 struct device *dev = ice_pf_to_dev(pf);4834 4835 if (ice_is_safe_mode(pf))4836 return;4837 4838 /* initialize DDP driven features */4839 if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags))4840 ice_ptp_init(pf);4841 4842 if (ice_is_feature_supported(pf, ICE_F_GNSS))4843 ice_gnss_init(pf);4844 4845 if (ice_is_feature_supported(pf, ICE_F_CGU) ||4846 ice_is_feature_supported(pf, ICE_F_PHY_RCLK))4847 ice_dpll_init(pf);4848 4849 /* Note: Flow director init failure is non-fatal to load */4850 if (ice_init_fdir(pf))4851 dev_err(dev, "could not initialize flow director\n");4852 4853 /* Note: DCB init failure is non-fatal to load */4854 if (ice_init_pf_dcb(pf, false)) {4855 clear_bit(ICE_FLAG_DCB_CAPABLE, pf->flags);4856 clear_bit(ICE_FLAG_DCB_ENA, pf->flags);4857 } else {4858 ice_cfg_lldp_mib_change(&pf->hw, true);4859 }4860 4861 if (ice_init_lag(pf))4862 dev_warn(dev, "Failed to init link aggregation support\n");4863 4864 ice_hwmon_init(pf);4865}4866 4867static void ice_deinit_features(struct ice_pf *pf)4868{4869 if (ice_is_safe_mode(pf))4870 return;4871 4872 ice_deinit_lag(pf);4873 if (test_bit(ICE_FLAG_DCB_CAPABLE, pf->flags))4874 ice_cfg_lldp_mib_change(&pf->hw, false);4875 ice_deinit_fdir(pf);4876 if (ice_is_feature_supported(pf, ICE_F_GNSS))4877 ice_gnss_exit(pf);4878 if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags))4879 ice_ptp_release(pf);4880 if (test_bit(ICE_FLAG_DPLL, pf->flags))4881 ice_dpll_deinit(pf);4882 if (pf->eswitch_mode == DEVLINK_ESWITCH_MODE_SWITCHDEV)4883 xa_destroy(&pf->eswitch.reprs);4884}4885 4886static void ice_init_wakeup(struct ice_pf *pf)4887{4888 /* Save wakeup reason register for later use */4889 pf->wakeup_reason = rd32(&pf->hw, PFPM_WUS);4890 4891 /* check for a power management event */4892 ice_print_wake_reason(pf);4893 4894 /* clear wake status, all bits */4895 wr32(&pf->hw, PFPM_WUS, U32_MAX);4896 4897 /* Disable WoL at init, wait for user to enable */4898 device_set_wakeup_enable(ice_pf_to_dev(pf), false);4899}4900 4901static int ice_init_link(struct ice_pf *pf)4902{4903 struct device *dev = ice_pf_to_dev(pf);4904 int err;4905 4906 err = ice_init_link_events(pf->hw.port_info);4907 if (err) {4908 dev_err(dev, "ice_init_link_events failed: %d\n", err);4909 return err;4910 }4911 4912 /* not a fatal error if this fails */4913 err = ice_init_nvm_phy_type(pf->hw.port_info);4914 if (err)4915 dev_err(dev, "ice_init_nvm_phy_type failed: %d\n", err);4916 4917 /* not a fatal error if this fails */4918 err = ice_update_link_info(pf->hw.port_info);4919 if (err)4920 dev_err(dev, "ice_update_link_info failed: %d\n", err);4921 4922 ice_init_link_dflt_override(pf->hw.port_info);4923 4924 ice_check_link_cfg_err(pf,4925 pf->hw.port_info->phy.link_info.link_cfg_err);4926 4927 /* if media available, initialize PHY settings */4928 if (pf->hw.port_info->phy.link_info.link_info &4929 ICE_AQ_MEDIA_AVAILABLE) {4930 /* not a fatal error if this fails */4931 err = ice_init_phy_user_cfg(pf->hw.port_info);4932 if (err)4933 dev_err(dev, "ice_init_phy_user_cfg failed: %d\n", err);4934 4935 if (!test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, pf->flags)) {4936 struct ice_vsi *vsi = ice_get_main_vsi(pf);4937 4938 if (vsi)4939 ice_configure_phy(vsi);4940 }4941 } else {4942 set_bit(ICE_FLAG_NO_MEDIA, pf->flags);4943 }4944 4945 return err;4946}4947 4948static int ice_init_pf_sw(struct ice_pf *pf)4949{4950 bool dvm = ice_is_dvm_ena(&pf->hw);4951 struct ice_vsi *vsi;4952 int err;4953 4954 /* create switch struct for the switch element created by FW on boot */4955 pf->first_sw = kzalloc(sizeof(*pf->first_sw), GFP_KERNEL);4956 if (!pf->first_sw)4957 return -ENOMEM;4958 4959 if (pf->hw.evb_veb)4960 pf->first_sw->bridge_mode = BRIDGE_MODE_VEB;4961 else4962 pf->first_sw->bridge_mode = BRIDGE_MODE_VEPA;4963 4964 pf->first_sw->pf = pf;4965 4966 /* record the sw_id available for later use */4967 pf->first_sw->sw_id = pf->hw.port_info->sw_id;4968 4969 err = ice_aq_set_port_params(pf->hw.port_info, dvm, NULL);4970 if (err)4971 goto err_aq_set_port_params;4972 4973 vsi = ice_pf_vsi_setup(pf, pf->hw.port_info);4974 if (!vsi) {4975 err = -ENOMEM;4976 goto err_pf_vsi_setup;4977 }4978 4979 return 0;4980 4981err_pf_vsi_setup:4982err_aq_set_port_params:4983 kfree(pf->first_sw);4984 return err;4985}4986 4987static void ice_deinit_pf_sw(struct ice_pf *pf)4988{4989 struct ice_vsi *vsi = ice_get_main_vsi(pf);4990 4991 if (!vsi)4992 return;4993 4994 ice_vsi_release(vsi);4995 kfree(pf->first_sw);4996}4997 4998static int ice_alloc_vsis(struct ice_pf *pf)4999{5000 struct device *dev = ice_pf_to_dev(pf);5001 5002 pf->num_alloc_vsi = pf->hw.func_caps.guar_num_vsi;5003 if (!pf->num_alloc_vsi)5004 return -EIO;5005 5006 if (pf->num_alloc_vsi > UDP_TUNNEL_NIC_MAX_SHARING_DEVICES) {5007 dev_warn(dev,5008 "limiting the VSI count due to UDP tunnel limitation %d > %d\n",5009 pf->num_alloc_vsi, UDP_TUNNEL_NIC_MAX_SHARING_DEVICES);5010 pf->num_alloc_vsi = UDP_TUNNEL_NIC_MAX_SHARING_DEVICES;5011 }5012 5013 pf->vsi = devm_kcalloc(dev, pf->num_alloc_vsi, sizeof(*pf->vsi),5014 GFP_KERNEL);5015 if (!pf->vsi)5016 return -ENOMEM;5017 5018 pf->vsi_stats = devm_kcalloc(dev, pf->num_alloc_vsi,5019 sizeof(*pf->vsi_stats), GFP_KERNEL);5020 if (!pf->vsi_stats) {5021 devm_kfree(dev, pf->vsi);5022 return -ENOMEM;5023 }5024 5025 return 0;5026}5027 5028static void ice_dealloc_vsis(struct ice_pf *pf)5029{5030 devm_kfree(ice_pf_to_dev(pf), pf->vsi_stats);5031 pf->vsi_stats = NULL;5032 5033 pf->num_alloc_vsi = 0;5034 devm_kfree(ice_pf_to_dev(pf), pf->vsi);5035 pf->vsi = NULL;5036}5037 5038static int ice_init_devlink(struct ice_pf *pf)5039{5040 int err;5041 5042 err = ice_devlink_register_params(pf);5043 if (err)5044 return err;5045 5046 ice_devlink_init_regions(pf);5047 ice_devlink_register(pf);5048 5049 return 0;5050}5051 5052static void ice_deinit_devlink(struct ice_pf *pf)5053{5054 ice_devlink_unregister(pf);5055 ice_devlink_destroy_regions(pf);5056 ice_devlink_unregister_params(pf);5057}5058 5059static int ice_init(struct ice_pf *pf)5060{5061 int err;5062 5063 err = ice_init_dev(pf);5064 if (err)5065 return err;5066 5067 err = ice_alloc_vsis(pf);5068 if (err)5069 goto err_alloc_vsis;5070 5071 err = ice_init_pf_sw(pf);5072 if (err)5073 goto err_init_pf_sw;5074 5075 ice_init_wakeup(pf);5076 5077 err = ice_init_link(pf);5078 if (err)5079 goto err_init_link;5080 5081 err = ice_send_version(pf);5082 if (err)5083 goto err_init_link;5084 5085 ice_verify_cacheline_size(pf);5086 5087 if (ice_is_safe_mode(pf))5088 ice_set_safe_mode_vlan_cfg(pf);5089 else5090 /* print PCI link speed and width */5091 pcie_print_link_status(pf->pdev);5092 5093 /* ready to go, so clear down state bit */5094 clear_bit(ICE_DOWN, pf->state);5095 clear_bit(ICE_SERVICE_DIS, pf->state);5096 5097 /* since everything is good, start the service timer */5098 mod_timer(&pf->serv_tmr, round_jiffies(jiffies + pf->serv_tmr_period));5099 5100 return 0;5101 5102err_init_link:5103 ice_deinit_pf_sw(pf);5104err_init_pf_sw:5105 ice_dealloc_vsis(pf);5106err_alloc_vsis:5107 ice_deinit_dev(pf);5108 return err;5109}5110 5111static void ice_deinit(struct ice_pf *pf)5112{5113 set_bit(ICE_SERVICE_DIS, pf->state);5114 set_bit(ICE_DOWN, pf->state);5115 5116 ice_deinit_pf_sw(pf);5117 ice_dealloc_vsis(pf);5118 ice_deinit_dev(pf);5119}5120 5121/**5122 * ice_load - load pf by init hw and starting VSI5123 * @pf: pointer to the pf instance5124 *5125 * This function has to be called under devl_lock.5126 */5127int ice_load(struct ice_pf *pf)5128{5129 struct ice_vsi *vsi;5130 int err;5131 5132 devl_assert_locked(priv_to_devlink(pf));5133 5134 vsi = ice_get_main_vsi(pf);5135 5136 /* init channel list */5137 INIT_LIST_HEAD(&vsi->ch_list);5138 5139 err = ice_cfg_netdev(vsi);5140 if (err)5141 return err;5142 5143 /* Setup DCB netlink interface */5144 ice_dcbnl_setup(vsi);5145 5146 err = ice_init_mac_fltr(pf);5147 if (err)5148 goto err_init_mac_fltr;5149 5150 err = ice_devlink_create_pf_port(pf);5151 if (err)5152 goto err_devlink_create_pf_port;5153 5154 SET_NETDEV_DEVLINK_PORT(vsi->netdev, &pf->devlink_port);5155 5156 err = ice_register_netdev(vsi);5157 if (err)5158 goto err_register_netdev;5159 5160 err = ice_tc_indir_block_register(vsi);5161 if (err)5162 goto err_tc_indir_block_register;5163 5164 ice_napi_add(vsi);5165 5166 err = ice_init_rdma(pf);5167 if (err)5168 goto err_init_rdma;5169 5170 ice_init_features(pf);5171 ice_service_task_restart(pf);5172 5173 clear_bit(ICE_DOWN, pf->state);5174 5175 return 0;5176 5177err_init_rdma:5178 ice_tc_indir_block_unregister(vsi);5179err_tc_indir_block_register:5180 ice_unregister_netdev(vsi);5181err_register_netdev:5182 ice_devlink_destroy_pf_port(pf);5183err_devlink_create_pf_port:5184err_init_mac_fltr:5185 ice_decfg_netdev(vsi);5186 return err;5187}5188 5189/**5190 * ice_unload - unload pf by stopping VSI and deinit hw5191 * @pf: pointer to the pf instance5192 *5193 * This function has to be called under devl_lock.5194 */5195void ice_unload(struct ice_pf *pf)5196{5197 struct ice_vsi *vsi = ice_get_main_vsi(pf);5198 5199 devl_assert_locked(priv_to_devlink(pf));5200 5201 ice_deinit_features(pf);5202 ice_deinit_rdma(pf);5203 ice_tc_indir_block_unregister(vsi);5204 ice_unregister_netdev(vsi);5205 ice_devlink_destroy_pf_port(pf);5206 ice_decfg_netdev(vsi);5207}5208 5209/**5210 * ice_probe - Device initialization routine5211 * @pdev: PCI device information struct5212 * @ent: entry in ice_pci_tbl5213 *5214 * Returns 0 on success, negative on failure5215 */5216static int5217ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)5218{5219 struct device *dev = &pdev->dev;5220 struct ice_adapter *adapter;5221 struct ice_pf *pf;5222 struct ice_hw *hw;5223 int err;5224 5225 if (pdev->is_virtfn) {5226 dev_err(dev, "can't probe a virtual function\n");5227 return -EINVAL;5228 }5229 5230 /* when under a kdump kernel initiate a reset before enabling the5231 * device in order to clear out any pending DMA transactions. These5232 * transactions can cause some systems to machine check when doing5233 * the pcim_enable_device() below.5234 */5235 if (is_kdump_kernel()) {5236 pci_save_state(pdev);5237 pci_clear_master(pdev);5238 err = pcie_flr(pdev);5239 if (err)5240 return err;5241 pci_restore_state(pdev);5242 }5243 5244 /* this driver uses devres, see5245 * Documentation/driver-api/driver-model/devres.rst5246 */5247 err = pcim_enable_device(pdev);5248 if (err)5249 return err;5250 5251 err = pcim_iomap_regions(pdev, BIT(ICE_BAR0), dev_driver_string(dev));5252 if (err) {5253 dev_err(dev, "BAR0 I/O map error %d\n", err);5254 return err;5255 }5256 5257 pf = ice_allocate_pf(dev);5258 if (!pf)5259 return -ENOMEM;5260 5261 /* initialize Auxiliary index to invalid value */5262 pf->aux_idx = -1;5263 5264 /* set up for high or low DMA */5265 err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));5266 if (err) {5267 dev_err(dev, "DMA configuration failed: 0x%x\n", err);5268 return err;5269 }5270 5271 pci_set_master(pdev);5272 5273 adapter = ice_adapter_get(pdev);5274 if (IS_ERR(adapter))5275 return PTR_ERR(adapter);5276 5277 pf->pdev = pdev;5278 pf->adapter = adapter;5279 pci_set_drvdata(pdev, pf);5280 set_bit(ICE_DOWN, pf->state);5281 /* Disable service task until DOWN bit is cleared */5282 set_bit(ICE_SERVICE_DIS, pf->state);5283 5284 hw = &pf->hw;5285 hw->hw_addr = pcim_iomap_table(pdev)[ICE_BAR0];5286 pci_save_state(pdev);5287 5288 hw->back = pf;5289 hw->port_info = NULL;5290 hw->vendor_id = pdev->vendor;5291 hw->device_id = pdev->device;5292 pci_read_config_byte(pdev, PCI_REVISION_ID, &hw->revision_id);5293 hw->subsystem_vendor_id = pdev->subsystem_vendor;5294 hw->subsystem_device_id = pdev->subsystem_device;5295 hw->bus.device = PCI_SLOT(pdev->devfn);5296 hw->bus.func = PCI_FUNC(pdev->devfn);5297 ice_set_ctrlq_len(hw);5298 5299 pf->msg_enable = netif_msg_init(debug, ICE_DFLT_NETIF_M);5300 5301#ifndef CONFIG_DYNAMIC_DEBUG5302 if (debug < -1)5303 hw->debug_mask = debug;5304#endif5305 5306 err = ice_init(pf);5307 if (err)5308 goto err_init;5309 5310 devl_lock(priv_to_devlink(pf));5311 err = ice_load(pf);5312 if (err)5313 goto err_load;5314 5315 err = ice_init_devlink(pf);5316 if (err)5317 goto err_init_devlink;5318 devl_unlock(priv_to_devlink(pf));5319 5320 return 0;5321 5322err_init_devlink:5323 ice_unload(pf);5324err_load:5325 devl_unlock(priv_to_devlink(pf));5326 ice_deinit(pf);5327err_init:5328 ice_adapter_put(pdev);5329 return err;5330}5331 5332/**5333 * ice_set_wake - enable or disable Wake on LAN5334 * @pf: pointer to the PF struct5335 *5336 * Simple helper for WoL control5337 */5338static void ice_set_wake(struct ice_pf *pf)5339{5340 struct ice_hw *hw = &pf->hw;5341 bool wol = pf->wol_ena;5342 5343 /* clear wake state, otherwise new wake events won't fire */5344 wr32(hw, PFPM_WUS, U32_MAX);5345 5346 /* enable / disable APM wake up, no RMW needed */5347 wr32(hw, PFPM_APM, wol ? PFPM_APM_APME_M : 0);5348 5349 /* set magic packet filter enabled */5350 wr32(hw, PFPM_WUFC, wol ? PFPM_WUFC_MAG_M : 0);5351}5352 5353/**5354 * ice_setup_mc_magic_wake - setup device to wake on multicast magic packet5355 * @pf: pointer to the PF struct5356 *5357 * Issue firmware command to enable multicast magic wake, making5358 * sure that any locally administered address (LAA) is used for5359 * wake, and that PF reset doesn't undo the LAA.5360 */5361static void ice_setup_mc_magic_wake(struct ice_pf *pf)5362{5363 struct device *dev = ice_pf_to_dev(pf);5364 struct ice_hw *hw = &pf->hw;5365 u8 mac_addr[ETH_ALEN];5366 struct ice_vsi *vsi;5367 int status;5368 u8 flags;5369 5370 if (!pf->wol_ena)5371 return;5372 5373 vsi = ice_get_main_vsi(pf);5374 if (!vsi)5375 return;5376 5377 /* Get current MAC address in case it's an LAA */5378 if (vsi->netdev)5379 ether_addr_copy(mac_addr, vsi->netdev->dev_addr);5380 else5381 ether_addr_copy(mac_addr, vsi->port_info->mac.perm_addr);5382 5383 flags = ICE_AQC_MAN_MAC_WR_MC_MAG_EN |5384 ICE_AQC_MAN_MAC_UPDATE_LAA_WOL |5385 ICE_AQC_MAN_MAC_WR_WOL_LAA_PFR_KEEP;5386 5387 status = ice_aq_manage_mac_write(hw, mac_addr, flags, NULL);5388 if (status)5389 dev_err(dev, "Failed to enable Multicast Magic Packet wake, err %d aq_err %s\n",5390 status, ice_aq_str(hw->adminq.sq_last_status));5391}5392 5393/**5394 * ice_remove - Device removal routine5395 * @pdev: PCI device information struct5396 */5397static void ice_remove(struct pci_dev *pdev)5398{5399 struct ice_pf *pf = pci_get_drvdata(pdev);5400 int i;5401 5402 for (i = 0; i < ICE_MAX_RESET_WAIT; i++) {5403 if (!ice_is_reset_in_progress(pf->state))5404 break;5405 msleep(100);5406 }5407 5408 if (test_bit(ICE_FLAG_SRIOV_ENA, pf->flags)) {5409 set_bit(ICE_VF_RESETS_DISABLED, pf->state);5410 ice_free_vfs(pf);5411 }5412 5413 ice_hwmon_exit(pf);5414 5415 ice_service_task_stop(pf);5416 ice_aq_cancel_waiting_tasks(pf);5417 set_bit(ICE_DOWN, pf->state);5418 5419 if (!ice_is_safe_mode(pf))5420 ice_remove_arfs(pf);5421 5422 devl_lock(priv_to_devlink(pf));5423 ice_dealloc_all_dynamic_ports(pf);5424 ice_deinit_devlink(pf);5425 5426 ice_unload(pf);5427 devl_unlock(priv_to_devlink(pf));5428 5429 ice_deinit(pf);5430 ice_vsi_release_all(pf);5431 5432 ice_setup_mc_magic_wake(pf);5433 ice_set_wake(pf);5434 5435 ice_adapter_put(pdev);5436}5437 5438/**5439 * ice_shutdown - PCI callback for shutting down device5440 * @pdev: PCI device information struct5441 */5442static void ice_shutdown(struct pci_dev *pdev)5443{5444 struct ice_pf *pf = pci_get_drvdata(pdev);5445 5446 ice_remove(pdev);5447 5448 if (system_state == SYSTEM_POWER_OFF) {5449 pci_wake_from_d3(pdev, pf->wol_ena);5450 pci_set_power_state(pdev, PCI_D3hot);5451 }5452}5453 5454/**5455 * ice_prepare_for_shutdown - prep for PCI shutdown5456 * @pf: board private structure5457 *5458 * Inform or close all dependent features in prep for PCI device shutdown5459 */5460static void ice_prepare_for_shutdown(struct ice_pf *pf)5461{5462 struct ice_hw *hw = &pf->hw;5463 u32 v;5464 5465 /* Notify VFs of impending reset */5466 if (ice_check_sq_alive(hw, &hw->mailboxq))5467 ice_vc_notify_reset(pf);5468 5469 dev_dbg(ice_pf_to_dev(pf), "Tearing down internal switch for shutdown\n");5470 5471 /* disable the VSIs and their queues that are not already DOWN */5472 ice_pf_dis_all_vsi(pf, false);5473 5474 ice_for_each_vsi(pf, v)5475 if (pf->vsi[v])5476 pf->vsi[v]->vsi_num = 0;5477 5478 ice_shutdown_all_ctrlq(hw, true);5479}5480 5481/**5482 * ice_reinit_interrupt_scheme - Reinitialize interrupt scheme5483 * @pf: board private structure to reinitialize5484 *5485 * This routine reinitialize interrupt scheme that was cleared during5486 * power management suspend callback.5487 *5488 * This should be called during resume routine to re-allocate the q_vectors5489 * and reacquire interrupts.5490 */5491static int ice_reinit_interrupt_scheme(struct ice_pf *pf)5492{5493 struct device *dev = ice_pf_to_dev(pf);5494 int ret, v;5495 5496 /* Since we clear MSIX flag during suspend, we need to5497 * set it back during resume...5498 */5499 5500 ret = ice_init_interrupt_scheme(pf);5501 if (ret) {5502 dev_err(dev, "Failed to re-initialize interrupt %d\n", ret);5503 return ret;5504 }5505 5506 /* Remap vectors and rings, after successful re-init interrupts */5507 ice_for_each_vsi(pf, v) {5508 if (!pf->vsi[v])5509 continue;5510 5511 ret = ice_vsi_alloc_q_vectors(pf->vsi[v]);5512 if (ret)5513 goto err_reinit;5514 ice_vsi_map_rings_to_vectors(pf->vsi[v]);5515 rtnl_lock();5516 ice_vsi_set_napi_queues(pf->vsi[v]);5517 rtnl_unlock();5518 }5519 5520 ret = ice_req_irq_msix_misc(pf);5521 if (ret) {5522 dev_err(dev, "Setting up misc vector failed after device suspend %d\n",5523 ret);5524 goto err_reinit;5525 }5526 5527 return 0;5528 5529err_reinit:5530 while (v--)5531 if (pf->vsi[v]) {5532 rtnl_lock();5533 ice_vsi_clear_napi_queues(pf->vsi[v]);5534 rtnl_unlock();5535 ice_vsi_free_q_vectors(pf->vsi[v]);5536 }5537 5538 return ret;5539}5540 5541/**5542 * ice_suspend5543 * @dev: generic device information structure5544 *5545 * Power Management callback to quiesce the device and prepare5546 * for D3 transition.5547 */5548static int ice_suspend(struct device *dev)5549{5550 struct pci_dev *pdev = to_pci_dev(dev);5551 struct ice_pf *pf;5552 int disabled, v;5553 5554 pf = pci_get_drvdata(pdev);5555 5556 if (!ice_pf_state_is_nominal(pf)) {5557 dev_err(dev, "Device is not ready, no need to suspend it\n");5558 return -EBUSY;5559 }5560 5561 /* Stop watchdog tasks until resume completion.5562 * Even though it is most likely that the service task is5563 * disabled if the device is suspended or down, the service task's5564 * state is controlled by a different state bit, and we should5565 * store and honor whatever state that bit is in at this point.5566 */5567 disabled = ice_service_task_stop(pf);5568 5569 ice_deinit_rdma(pf);5570 5571 /* Already suspended?, then there is nothing to do */5572 if (test_and_set_bit(ICE_SUSPENDED, pf->state)) {5573 if (!disabled)5574 ice_service_task_restart(pf);5575 return 0;5576 }5577 5578 if (test_bit(ICE_DOWN, pf->state) ||5579 ice_is_reset_in_progress(pf->state)) {5580 dev_err(dev, "can't suspend device in reset or already down\n");5581 if (!disabled)5582 ice_service_task_restart(pf);5583 return 0;5584 }5585 5586 ice_setup_mc_magic_wake(pf);5587 5588 ice_prepare_for_shutdown(pf);5589 5590 ice_set_wake(pf);5591 5592 /* Free vectors, clear the interrupt scheme and release IRQs5593 * for proper hibernation, especially with large number of CPUs.5594 * Otherwise hibernation might fail when mapping all the vectors back5595 * to CPU0.5596 */5597 ice_free_irq_msix_misc(pf);5598 ice_for_each_vsi(pf, v) {5599 if (!pf->vsi[v])5600 continue;5601 rtnl_lock();5602 ice_vsi_clear_napi_queues(pf->vsi[v]);5603 rtnl_unlock();5604 ice_vsi_free_q_vectors(pf->vsi[v]);5605 }5606 ice_clear_interrupt_scheme(pf);5607 5608 pci_save_state(pdev);5609 pci_wake_from_d3(pdev, pf->wol_ena);5610 pci_set_power_state(pdev, PCI_D3hot);5611 return 0;5612}5613 5614/**5615 * ice_resume - PM callback for waking up from D35616 * @dev: generic device information structure5617 */5618static int ice_resume(struct device *dev)5619{5620 struct pci_dev *pdev = to_pci_dev(dev);5621 enum ice_reset_req reset_type;5622 struct ice_pf *pf;5623 struct ice_hw *hw;5624 int ret;5625 5626 pci_set_power_state(pdev, PCI_D0);5627 pci_restore_state(pdev);5628 pci_save_state(pdev);5629 5630 if (!pci_device_is_present(pdev))5631 return -ENODEV;5632 5633 ret = pci_enable_device_mem(pdev);5634 if (ret) {5635 dev_err(dev, "Cannot enable device after suspend\n");5636 return ret;5637 }5638 5639 pf = pci_get_drvdata(pdev);5640 hw = &pf->hw;5641 5642 pf->wakeup_reason = rd32(hw, PFPM_WUS);5643 ice_print_wake_reason(pf);5644 5645 /* We cleared the interrupt scheme when we suspended, so we need to5646 * restore it now to resume device functionality.5647 */5648 ret = ice_reinit_interrupt_scheme(pf);5649 if (ret)5650 dev_err(dev, "Cannot restore interrupt scheme: %d\n", ret);5651 5652 ret = ice_init_rdma(pf);5653 if (ret)5654 dev_err(dev, "Reinitialize RDMA during resume failed: %d\n",5655 ret);5656 5657 clear_bit(ICE_DOWN, pf->state);5658 /* Now perform PF reset and rebuild */5659 reset_type = ICE_RESET_PFR;5660 /* re-enable service task for reset, but allow reset to schedule it */5661 clear_bit(ICE_SERVICE_DIS, pf->state);5662 5663 if (ice_schedule_reset(pf, reset_type))5664 dev_err(dev, "Reset during resume failed.\n");5665 5666 clear_bit(ICE_SUSPENDED, pf->state);5667 ice_service_task_restart(pf);5668 5669 /* Restart the service task */5670 mod_timer(&pf->serv_tmr, round_jiffies(jiffies + pf->serv_tmr_period));5671 5672 return 0;5673}5674 5675/**5676 * ice_pci_err_detected - warning that PCI error has been detected5677 * @pdev: PCI device information struct5678 * @err: the type of PCI error5679 *5680 * Called to warn that something happened on the PCI bus and the error handling5681 * is in progress. Allows the driver to gracefully prepare/handle PCI errors.5682 */5683static pci_ers_result_t5684ice_pci_err_detected(struct pci_dev *pdev, pci_channel_state_t err)5685{5686 struct ice_pf *pf = pci_get_drvdata(pdev);5687 5688 if (!pf) {5689 dev_err(&pdev->dev, "%s: unrecoverable device error %d\n",5690 __func__, err);5691 return PCI_ERS_RESULT_DISCONNECT;5692 }5693 5694 if (!test_bit(ICE_SUSPENDED, pf->state)) {5695 ice_service_task_stop(pf);5696 5697 if (!test_bit(ICE_PREPARED_FOR_RESET, pf->state)) {5698 set_bit(ICE_PFR_REQ, pf->state);5699 ice_prepare_for_reset(pf, ICE_RESET_PFR);5700 }5701 }5702 5703 return PCI_ERS_RESULT_NEED_RESET;5704}5705 5706/**5707 * ice_pci_err_slot_reset - a PCI slot reset has just happened5708 * @pdev: PCI device information struct5709 *5710 * Called to determine if the driver can recover from the PCI slot reset by5711 * using a register read to determine if the device is recoverable.5712 */5713static pci_ers_result_t ice_pci_err_slot_reset(struct pci_dev *pdev)5714{5715 struct ice_pf *pf = pci_get_drvdata(pdev);5716 pci_ers_result_t result;5717 int err;5718 u32 reg;5719 5720 err = pci_enable_device_mem(pdev);5721 if (err) {5722 dev_err(&pdev->dev, "Cannot re-enable PCI device after reset, error %d\n",5723 err);5724 result = PCI_ERS_RESULT_DISCONNECT;5725 } else {5726 pci_set_master(pdev);5727 pci_restore_state(pdev);5728 pci_save_state(pdev);5729 pci_wake_from_d3(pdev, false);5730 5731 /* Check for life */5732 reg = rd32(&pf->hw, GLGEN_RTRIG);5733 if (!reg)5734 result = PCI_ERS_RESULT_RECOVERED;5735 else5736 result = PCI_ERS_RESULT_DISCONNECT;5737 }5738 5739 return result;5740}5741 5742/**5743 * ice_pci_err_resume - restart operations after PCI error recovery5744 * @pdev: PCI device information struct5745 *5746 * Called to allow the driver to bring things back up after PCI error and/or5747 * reset recovery have finished5748 */5749static void ice_pci_err_resume(struct pci_dev *pdev)5750{5751 struct ice_pf *pf = pci_get_drvdata(pdev);5752 5753 if (!pf) {5754 dev_err(&pdev->dev, "%s failed, device is unrecoverable\n",5755 __func__);5756 return;5757 }5758 5759 if (test_bit(ICE_SUSPENDED, pf->state)) {5760 dev_dbg(&pdev->dev, "%s failed to resume normal operations!\n",5761 __func__);5762 return;5763 }5764 5765 ice_restore_all_vfs_msi_state(pf);5766 5767 ice_do_reset(pf, ICE_RESET_PFR);5768 ice_service_task_restart(pf);5769 mod_timer(&pf->serv_tmr, round_jiffies(jiffies + pf->serv_tmr_period));5770}5771 5772/**5773 * ice_pci_err_reset_prepare - prepare device driver for PCI reset5774 * @pdev: PCI device information struct5775 */5776static void ice_pci_err_reset_prepare(struct pci_dev *pdev)5777{5778 struct ice_pf *pf = pci_get_drvdata(pdev);5779 5780 if (!test_bit(ICE_SUSPENDED, pf->state)) {5781 ice_service_task_stop(pf);5782 5783 if (!test_bit(ICE_PREPARED_FOR_RESET, pf->state)) {5784 set_bit(ICE_PFR_REQ, pf->state);5785 ice_prepare_for_reset(pf, ICE_RESET_PFR);5786 }5787 }5788}5789 5790/**5791 * ice_pci_err_reset_done - PCI reset done, device driver reset can begin5792 * @pdev: PCI device information struct5793 */5794static void ice_pci_err_reset_done(struct pci_dev *pdev)5795{5796 ice_pci_err_resume(pdev);5797}5798 5799/* ice_pci_tbl - PCI Device ID Table5800 *5801 * Wildcard entries (PCI_ANY_ID) should come last5802 * Last entry must be all 0s5803 *5804 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,5805 * Class, Class Mask, private data (not used) }5806 */5807static const struct pci_device_id ice_pci_tbl[] = {5808 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810C_BACKPLANE) },5809 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810C_QSFP) },5810 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810C_SFP) },5811 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810_XXV_BACKPLANE) },5812 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810_XXV_QSFP) },5813 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E810_XXV_SFP) },5814 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_BACKPLANE) },5815 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_QSFP) },5816 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_SFP) },5817 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_10G_BASE_T) },5818 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_SGMII) },5819 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_BACKPLANE) },5820 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_QSFP) },5821 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_SFP) },5822 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_10G_BASE_T) },5823 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822C_SGMII) },5824 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822L_BACKPLANE) },5825 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822L_SFP) },5826 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822L_10G_BASE_T) },5827 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822L_SGMII) },5828 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_BACKPLANE) },5829 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_SFP) },5830 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_10G_BASE_T) },5831 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_1GBE) },5832 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_QSFP) },5833 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E822_SI_DFLT) },5834 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E825C_BACKPLANE), },5835 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E825C_QSFP), },5836 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E825C_SFP), },5837 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E825C_SGMII), },5838 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E830CC_BACKPLANE) },5839 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E830CC_QSFP56) },5840 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E830CC_SFP) },5841 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E830CC_SFP_DD) },5842 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E830C_BACKPLANE), },5843 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E830_XXV_BACKPLANE), },5844 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E830C_QSFP), },5845 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E830_XXV_QSFP), },5846 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E830C_SFP), },5847 { PCI_VDEVICE(INTEL, ICE_DEV_ID_E830_XXV_SFP), },5848 /* required last entry */5849 {}5850};5851MODULE_DEVICE_TABLE(pci, ice_pci_tbl);5852 5853static DEFINE_SIMPLE_DEV_PM_OPS(ice_pm_ops, ice_suspend, ice_resume);5854 5855static const struct pci_error_handlers ice_pci_err_handler = {5856 .error_detected = ice_pci_err_detected,5857 .slot_reset = ice_pci_err_slot_reset,5858 .reset_prepare = ice_pci_err_reset_prepare,5859 .reset_done = ice_pci_err_reset_done,5860 .resume = ice_pci_err_resume5861};5862 5863static struct pci_driver ice_driver = {5864 .name = KBUILD_MODNAME,5865 .id_table = ice_pci_tbl,5866 .probe = ice_probe,5867 .remove = ice_remove,5868 .driver.pm = pm_sleep_ptr(&ice_pm_ops),5869 .shutdown = ice_shutdown,5870 .sriov_configure = ice_sriov_configure,5871 .sriov_get_vf_total_msix = ice_sriov_get_vf_total_msix,5872 .sriov_set_msix_vec_count = ice_sriov_set_msix_vec_count,5873 .err_handler = &ice_pci_err_handler5874};5875 5876/**5877 * ice_module_init - Driver registration routine5878 *5879 * ice_module_init is the first routine called when the driver is5880 * loaded. All it does is register with the PCI subsystem.5881 */5882static int __init ice_module_init(void)5883{5884 int status = -ENOMEM;5885 5886 pr_info("%s\n", ice_driver_string);5887 pr_info("%s\n", ice_copyright);5888 5889 ice_adv_lnk_speed_maps_init();5890 5891 ice_wq = alloc_workqueue("%s", 0, 0, KBUILD_MODNAME);5892 if (!ice_wq) {5893 pr_err("Failed to create workqueue\n");5894 return status;5895 }5896 5897 ice_lag_wq = alloc_ordered_workqueue("ice_lag_wq", 0);5898 if (!ice_lag_wq) {5899 pr_err("Failed to create LAG workqueue\n");5900 goto err_dest_wq;5901 }5902 5903 ice_debugfs_init();5904 5905 status = pci_register_driver(&ice_driver);5906 if (status) {5907 pr_err("failed to register PCI driver, err %d\n", status);5908 goto err_dest_lag_wq;5909 }5910 5911 status = ice_sf_driver_register();5912 if (status) {5913 pr_err("Failed to register SF driver, err %d\n", status);5914 goto err_sf_driver;5915 }5916 5917 return 0;5918 5919err_sf_driver:5920 pci_unregister_driver(&ice_driver);5921err_dest_lag_wq:5922 destroy_workqueue(ice_lag_wq);5923 ice_debugfs_exit();5924err_dest_wq:5925 destroy_workqueue(ice_wq);5926 return status;5927}5928module_init(ice_module_init);5929 5930/**5931 * ice_module_exit - Driver exit cleanup routine5932 *5933 * ice_module_exit is called just before the driver is removed5934 * from memory.5935 */5936static void __exit ice_module_exit(void)5937{5938 ice_sf_driver_unregister();5939 pci_unregister_driver(&ice_driver);5940 ice_debugfs_exit();5941 destroy_workqueue(ice_wq);5942 destroy_workqueue(ice_lag_wq);5943 pr_info("module unloaded\n");5944}5945module_exit(ice_module_exit);5946 5947/**5948 * ice_set_mac_address - NDO callback to set MAC address5949 * @netdev: network interface device structure5950 * @pi: pointer to an address structure5951 *5952 * Returns 0 on success, negative on failure5953 */5954static int ice_set_mac_address(struct net_device *netdev, void *pi)5955{5956 struct ice_netdev_priv *np = netdev_priv(netdev);5957 struct ice_vsi *vsi = np->vsi;5958 struct ice_pf *pf = vsi->back;5959 struct ice_hw *hw = &pf->hw;5960 struct sockaddr *addr = pi;5961 u8 old_mac[ETH_ALEN];5962 u8 flags = 0;5963 u8 *mac;5964 int err;5965 5966 mac = (u8 *)addr->sa_data;5967 5968 if (!is_valid_ether_addr(mac))5969 return -EADDRNOTAVAIL;5970 5971 if (test_bit(ICE_DOWN, pf->state) ||5972 ice_is_reset_in_progress(pf->state)) {5973 netdev_err(netdev, "can't set mac %pM. device not ready\n",5974 mac);5975 return -EBUSY;5976 }5977 5978 if (ice_chnl_dmac_fltr_cnt(pf)) {5979 netdev_err(netdev, "can't set mac %pM. Device has tc-flower filters, delete all of them and try again\n",5980 mac);5981 return -EAGAIN;5982 }5983 5984 netif_addr_lock_bh(netdev);5985 ether_addr_copy(old_mac, netdev->dev_addr);5986 /* change the netdev's MAC address */5987 eth_hw_addr_set(netdev, mac);5988 netif_addr_unlock_bh(netdev);5989 5990 /* Clean up old MAC filter. Not an error if old filter doesn't exist */5991 err = ice_fltr_remove_mac(vsi, old_mac, ICE_FWD_TO_VSI);5992 if (err && err != -ENOENT) {5993 err = -EADDRNOTAVAIL;5994 goto err_update_filters;5995 }5996 5997 /* Add filter for new MAC. If filter exists, return success */5998 err = ice_fltr_add_mac(vsi, mac, ICE_FWD_TO_VSI);5999 if (err == -EEXIST) {6000 /* Although this MAC filter is already present in hardware it's6001 * possible in some cases (e.g. bonding) that dev_addr was6002 * modified outside of the driver and needs to be restored back6003 * to this value.6004 */6005 netdev_dbg(netdev, "filter for MAC %pM already exists\n", mac);6006 6007 return 0;6008 } else if (err) {6009 /* error if the new filter addition failed */6010 err = -EADDRNOTAVAIL;6011 }6012 6013err_update_filters:6014 if (err) {6015 netdev_err(netdev, "can't set MAC %pM. filter update failed\n",6016 mac);6017 netif_addr_lock_bh(netdev);6018 eth_hw_addr_set(netdev, old_mac);6019 netif_addr_unlock_bh(netdev);6020 return err;6021 }6022 6023 netdev_dbg(vsi->netdev, "updated MAC address to %pM\n",6024 netdev->dev_addr);6025 6026 /* write new MAC address to the firmware */6027 flags = ICE_AQC_MAN_MAC_UPDATE_LAA_WOL;6028 err = ice_aq_manage_mac_write(hw, mac, flags, NULL);6029 if (err) {6030 netdev_err(netdev, "can't set MAC %pM. write to firmware failed error %d\n",6031 mac, err);6032 }6033 return 0;6034}6035 6036/**6037 * ice_set_rx_mode - NDO callback to set the netdev filters6038 * @netdev: network interface device structure6039 */6040static void ice_set_rx_mode(struct net_device *netdev)6041{6042 struct ice_netdev_priv *np = netdev_priv(netdev);6043 struct ice_vsi *vsi = np->vsi;6044 6045 if (!vsi || ice_is_switchdev_running(vsi->back))6046 return;6047 6048 /* Set the flags to synchronize filters6049 * ndo_set_rx_mode may be triggered even without a change in netdev6050 * flags6051 */6052 set_bit(ICE_VSI_UMAC_FLTR_CHANGED, vsi->state);6053 set_bit(ICE_VSI_MMAC_FLTR_CHANGED, vsi->state);6054 set_bit(ICE_FLAG_FLTR_SYNC, vsi->back->flags);6055 6056 /* schedule our worker thread which will take care of6057 * applying the new filter changes6058 */6059 ice_service_task_schedule(vsi->back);6060}6061 6062/**6063 * ice_set_tx_maxrate - NDO callback to set the maximum per-queue bitrate6064 * @netdev: network interface device structure6065 * @queue_index: Queue ID6066 * @maxrate: maximum bandwidth in Mbps6067 */6068static int6069ice_set_tx_maxrate(struct net_device *netdev, int queue_index, u32 maxrate)6070{6071 struct ice_netdev_priv *np = netdev_priv(netdev);6072 struct ice_vsi *vsi = np->vsi;6073 u16 q_handle;6074 int status;6075 u8 tc;6076 6077 /* Validate maxrate requested is within permitted range */6078 if (maxrate && (maxrate > (ICE_SCHED_MAX_BW / 1000))) {6079 netdev_err(netdev, "Invalid max rate %d specified for the queue %d\n",6080 maxrate, queue_index);6081 return -EINVAL;6082 }6083 6084 q_handle = vsi->tx_rings[queue_index]->q_handle;6085 tc = ice_dcb_get_tc(vsi, queue_index);6086 6087 vsi = ice_locate_vsi_using_queue(vsi, queue_index);6088 if (!vsi) {6089 netdev_err(netdev, "Invalid VSI for given queue %d\n",6090 queue_index);6091 return -EINVAL;6092 }6093 6094 /* Set BW back to default, when user set maxrate to 0 */6095 if (!maxrate)6096 status = ice_cfg_q_bw_dflt_lmt(vsi->port_info, vsi->idx, tc,6097 q_handle, ICE_MAX_BW);6098 else6099 status = ice_cfg_q_bw_lmt(vsi->port_info, vsi->idx, tc,6100 q_handle, ICE_MAX_BW, maxrate * 1000);6101 if (status)6102 netdev_err(netdev, "Unable to set Tx max rate, error %d\n",6103 status);6104 6105 return status;6106}6107 6108/**6109 * ice_fdb_add - add an entry to the hardware database6110 * @ndm: the input from the stack6111 * @tb: pointer to array of nladdr (unused)6112 * @dev: the net device pointer6113 * @addr: the MAC address entry being added6114 * @vid: VLAN ID6115 * @flags: instructions from stack about fdb operation6116 * @extack: netlink extended ack6117 */6118static int6119ice_fdb_add(struct ndmsg *ndm, struct nlattr __always_unused *tb[],6120 struct net_device *dev, const unsigned char *addr, u16 vid,6121 u16 flags, struct netlink_ext_ack __always_unused *extack)6122{6123 int err;6124 6125 if (vid) {6126 netdev_err(dev, "VLANs aren't supported yet for dev_uc|mc_add()\n");6127 return -EINVAL;6128 }6129 if (ndm->ndm_state && !(ndm->ndm_state & NUD_PERMANENT)) {6130 netdev_err(dev, "FDB only supports static addresses\n");6131 return -EINVAL;6132 }6133 6134 if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr))6135 err = dev_uc_add_excl(dev, addr);6136 else if (is_multicast_ether_addr(addr))6137 err = dev_mc_add_excl(dev, addr);6138 else6139 err = -EINVAL;6140 6141 /* Only return duplicate errors if NLM_F_EXCL is set */6142 if (err == -EEXIST && !(flags & NLM_F_EXCL))6143 err = 0;6144 6145 return err;6146}6147 6148/**6149 * ice_fdb_del - delete an entry from the hardware database6150 * @ndm: the input from the stack6151 * @tb: pointer to array of nladdr (unused)6152 * @dev: the net device pointer6153 * @addr: the MAC address entry being added6154 * @vid: VLAN ID6155 * @extack: netlink extended ack6156 */6157static int6158ice_fdb_del(struct ndmsg *ndm, __always_unused struct nlattr *tb[],6159 struct net_device *dev, const unsigned char *addr,6160 __always_unused u16 vid, struct netlink_ext_ack *extack)6161{6162 int err;6163 6164 if (ndm->ndm_state & NUD_PERMANENT) {6165 netdev_err(dev, "FDB only supports static addresses\n");6166 return -EINVAL;6167 }6168 6169 if (is_unicast_ether_addr(addr))6170 err = dev_uc_del(dev, addr);6171 else if (is_multicast_ether_addr(addr))6172 err = dev_mc_del(dev, addr);6173 else6174 err = -EINVAL;6175 6176 return err;6177}6178 6179#define NETIF_VLAN_OFFLOAD_FEATURES (NETIF_F_HW_VLAN_CTAG_RX | \6180 NETIF_F_HW_VLAN_CTAG_TX | \6181 NETIF_F_HW_VLAN_STAG_RX | \6182 NETIF_F_HW_VLAN_STAG_TX)6183 6184#define NETIF_VLAN_STRIPPING_FEATURES (NETIF_F_HW_VLAN_CTAG_RX | \6185 NETIF_F_HW_VLAN_STAG_RX)6186 6187#define NETIF_VLAN_FILTERING_FEATURES (NETIF_F_HW_VLAN_CTAG_FILTER | \6188 NETIF_F_HW_VLAN_STAG_FILTER)6189 6190/**6191 * ice_fix_features - fix the netdev features flags based on device limitations6192 * @netdev: ptr to the netdev that flags are being fixed on6193 * @features: features that need to be checked and possibly fixed6194 *6195 * Make sure any fixups are made to features in this callback. This enables the6196 * driver to not have to check unsupported configurations throughout the driver6197 * because that's the responsiblity of this callback.6198 *6199 * Single VLAN Mode (SVM) Supported Features:6200 * NETIF_F_HW_VLAN_CTAG_FILTER6201 * NETIF_F_HW_VLAN_CTAG_RX6202 * NETIF_F_HW_VLAN_CTAG_TX6203 *6204 * Double VLAN Mode (DVM) Supported Features:6205 * NETIF_F_HW_VLAN_CTAG_FILTER6206 * NETIF_F_HW_VLAN_CTAG_RX6207 * NETIF_F_HW_VLAN_CTAG_TX6208 *6209 * NETIF_F_HW_VLAN_STAG_FILTER6210 * NETIF_HW_VLAN_STAG_RX6211 * NETIF_HW_VLAN_STAG_TX6212 *6213 * Features that need fixing:6214 * Cannot simultaneously enable CTAG and STAG stripping and/or insertion.6215 * These are mutually exlusive as the VSI context cannot support multiple6216 * VLAN ethertypes simultaneously for stripping and/or insertion. If this6217 * is not done, then default to clearing the requested STAG offload6218 * settings.6219 *6220 * All supported filtering has to be enabled or disabled together. For6221 * example, in DVM, CTAG and STAG filtering have to be enabled and disabled6222 * together. If this is not done, then default to VLAN filtering disabled.6223 * These are mutually exclusive as there is currently no way to6224 * enable/disable VLAN filtering based on VLAN ethertype when using VLAN6225 * prune rules.6226 */6227static netdev_features_t6228ice_fix_features(struct net_device *netdev, netdev_features_t features)6229{6230 struct ice_netdev_priv *np = netdev_priv(netdev);6231 netdev_features_t req_vlan_fltr, cur_vlan_fltr;6232 bool cur_ctag, cur_stag, req_ctag, req_stag;6233 6234 cur_vlan_fltr = netdev->features & NETIF_VLAN_FILTERING_FEATURES;6235 cur_ctag = cur_vlan_fltr & NETIF_F_HW_VLAN_CTAG_FILTER;6236 cur_stag = cur_vlan_fltr & NETIF_F_HW_VLAN_STAG_FILTER;6237 6238 req_vlan_fltr = features & NETIF_VLAN_FILTERING_FEATURES;6239 req_ctag = req_vlan_fltr & NETIF_F_HW_VLAN_CTAG_FILTER;6240 req_stag = req_vlan_fltr & NETIF_F_HW_VLAN_STAG_FILTER;6241 6242 if (req_vlan_fltr != cur_vlan_fltr) {6243 if (ice_is_dvm_ena(&np->vsi->back->hw)) {6244 if (req_ctag && req_stag) {6245 features |= NETIF_VLAN_FILTERING_FEATURES;6246 } else if (!req_ctag && !req_stag) {6247 features &= ~NETIF_VLAN_FILTERING_FEATURES;6248 } else if ((!cur_ctag && req_ctag && !cur_stag) ||6249 (!cur_stag && req_stag && !cur_ctag)) {6250 features |= NETIF_VLAN_FILTERING_FEATURES;6251 netdev_warn(netdev, "802.1Q and 802.1ad VLAN filtering must be either both on or both off. VLAN filtering has been enabled for both types.\n");6252 } else if ((cur_ctag && !req_ctag && cur_stag) ||6253 (cur_stag && !req_stag && cur_ctag)) {6254 features &= ~NETIF_VLAN_FILTERING_FEATURES;6255 netdev_warn(netdev, "802.1Q and 802.1ad VLAN filtering must be either both on or both off. VLAN filtering has been disabled for both types.\n");6256 }6257 } else {6258 if (req_vlan_fltr & NETIF_F_HW_VLAN_STAG_FILTER)6259 netdev_warn(netdev, "cannot support requested 802.1ad filtering setting in SVM mode\n");6260 6261 if (req_vlan_fltr & NETIF_F_HW_VLAN_CTAG_FILTER)6262 features |= NETIF_F_HW_VLAN_CTAG_FILTER;6263 }6264 }6265 6266 if ((features & (NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_TX)) &&6267 (features & (NETIF_F_HW_VLAN_STAG_RX | NETIF_F_HW_VLAN_STAG_TX))) {6268 netdev_warn(netdev, "cannot support CTAG and STAG VLAN stripping and/or insertion simultaneously since CTAG and STAG offloads are mutually exclusive, clearing STAG offload settings\n");6269 features &= ~(NETIF_F_HW_VLAN_STAG_RX |6270 NETIF_F_HW_VLAN_STAG_TX);6271 }6272 6273 if (!(netdev->features & NETIF_F_RXFCS) &&6274 (features & NETIF_F_RXFCS) &&6275 (features & NETIF_VLAN_STRIPPING_FEATURES) &&6276 !ice_vsi_has_non_zero_vlans(np->vsi)) {6277 netdev_warn(netdev, "Disabling VLAN stripping as FCS/CRC stripping is also disabled and there is no VLAN configured\n");6278 features &= ~NETIF_VLAN_STRIPPING_FEATURES;6279 }6280 6281 return features;6282}6283 6284/**6285 * ice_set_rx_rings_vlan_proto - update rings with new stripped VLAN proto6286 * @vsi: PF's VSI6287 * @vlan_ethertype: VLAN ethertype (802.1Q or 802.1ad) in network byte order6288 *6289 * Store current stripped VLAN proto in ring packet context,6290 * so it can be accessed more efficiently by packet processing code.6291 */6292static void6293ice_set_rx_rings_vlan_proto(struct ice_vsi *vsi, __be16 vlan_ethertype)6294{6295 u16 i;6296 6297 ice_for_each_alloc_rxq(vsi, i)6298 vsi->rx_rings[i]->pkt_ctx.vlan_proto = vlan_ethertype;6299}6300 6301/**6302 * ice_set_vlan_offload_features - set VLAN offload features for the PF VSI6303 * @vsi: PF's VSI6304 * @features: features used to determine VLAN offload settings6305 *6306 * First, determine the vlan_ethertype based on the VLAN offload bits in6307 * features. Then determine if stripping and insertion should be enabled or6308 * disabled. Finally enable or disable VLAN stripping and insertion.6309 */6310static int6311ice_set_vlan_offload_features(struct ice_vsi *vsi, netdev_features_t features)6312{6313 bool enable_stripping = true, enable_insertion = true;6314 struct ice_vsi_vlan_ops *vlan_ops;6315 int strip_err = 0, insert_err = 0;6316 u16 vlan_ethertype = 0;6317 6318 vlan_ops = ice_get_compat_vsi_vlan_ops(vsi);6319 6320 if (features & (NETIF_F_HW_VLAN_STAG_RX | NETIF_F_HW_VLAN_STAG_TX))6321 vlan_ethertype = ETH_P_8021AD;6322 else if (features & (NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_TX))6323 vlan_ethertype = ETH_P_8021Q;6324 6325 if (!(features & (NETIF_F_HW_VLAN_STAG_RX | NETIF_F_HW_VLAN_CTAG_RX)))6326 enable_stripping = false;6327 if (!(features & (NETIF_F_HW_VLAN_STAG_TX | NETIF_F_HW_VLAN_CTAG_TX)))6328 enable_insertion = false;6329 6330 if (enable_stripping)6331 strip_err = vlan_ops->ena_stripping(vsi, vlan_ethertype);6332 else6333 strip_err = vlan_ops->dis_stripping(vsi);6334 6335 if (enable_insertion)6336 insert_err = vlan_ops->ena_insertion(vsi, vlan_ethertype);6337 else6338 insert_err = vlan_ops->dis_insertion(vsi);6339 6340 if (strip_err || insert_err)6341 return -EIO;6342 6343 ice_set_rx_rings_vlan_proto(vsi, enable_stripping ?6344 htons(vlan_ethertype) : 0);6345 6346 return 0;6347}6348 6349/**6350 * ice_set_vlan_filtering_features - set VLAN filtering features for the PF VSI6351 * @vsi: PF's VSI6352 * @features: features used to determine VLAN filtering settings6353 *6354 * Enable or disable Rx VLAN filtering based on the VLAN filtering bits in the6355 * features.6356 */6357static int6358ice_set_vlan_filtering_features(struct ice_vsi *vsi, netdev_features_t features)6359{6360 struct ice_vsi_vlan_ops *vlan_ops = ice_get_compat_vsi_vlan_ops(vsi);6361 int err = 0;6362 6363 /* support Single VLAN Mode (SVM) and Double VLAN Mode (DVM) by checking6364 * if either bit is set6365 */6366 if (features &6367 (NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_STAG_FILTER))6368 err = vlan_ops->ena_rx_filtering(vsi);6369 else6370 err = vlan_ops->dis_rx_filtering(vsi);6371 6372 return err;6373}6374 6375/**6376 * ice_set_vlan_features - set VLAN settings based on suggested feature set6377 * @netdev: ptr to the netdev being adjusted6378 * @features: the feature set that the stack is suggesting6379 *6380 * Only update VLAN settings if the requested_vlan_features are different than6381 * the current_vlan_features.6382 */6383static int6384ice_set_vlan_features(struct net_device *netdev, netdev_features_t features)6385{6386 netdev_features_t current_vlan_features, requested_vlan_features;6387 struct ice_netdev_priv *np = netdev_priv(netdev);6388 struct ice_vsi *vsi = np->vsi;6389 int err;6390 6391 current_vlan_features = netdev->features & NETIF_VLAN_OFFLOAD_FEATURES;6392 requested_vlan_features = features & NETIF_VLAN_OFFLOAD_FEATURES;6393 if (current_vlan_features ^ requested_vlan_features) {6394 if ((features & NETIF_F_RXFCS) &&6395 (features & NETIF_VLAN_STRIPPING_FEATURES)) {6396 dev_err(ice_pf_to_dev(vsi->back),6397 "To enable VLAN stripping, you must first enable FCS/CRC stripping\n");6398 return -EIO;6399 }6400 6401 err = ice_set_vlan_offload_features(vsi, features);6402 if (err)6403 return err;6404 }6405 6406 current_vlan_features = netdev->features &6407 NETIF_VLAN_FILTERING_FEATURES;6408 requested_vlan_features = features & NETIF_VLAN_FILTERING_FEATURES;6409 if (current_vlan_features ^ requested_vlan_features) {6410 err = ice_set_vlan_filtering_features(vsi, features);6411 if (err)6412 return err;6413 }6414 6415 return 0;6416}6417 6418/**6419 * ice_set_loopback - turn on/off loopback mode on underlying PF6420 * @vsi: ptr to VSI6421 * @ena: flag to indicate the on/off setting6422 */6423static int ice_set_loopback(struct ice_vsi *vsi, bool ena)6424{6425 bool if_running = netif_running(vsi->netdev);6426 int ret;6427 6428 if (if_running && !test_and_set_bit(ICE_VSI_DOWN, vsi->state)) {6429 ret = ice_down(vsi);6430 if (ret) {6431 netdev_err(vsi->netdev, "Preparing device to toggle loopback failed\n");6432 return ret;6433 }6434 }6435 ret = ice_aq_set_mac_loopback(&vsi->back->hw, ena, NULL);6436 if (ret)6437 netdev_err(vsi->netdev, "Failed to toggle loopback state\n");6438 if (if_running)6439 ret = ice_up(vsi);6440 6441 return ret;6442}6443 6444/**6445 * ice_set_features - set the netdev feature flags6446 * @netdev: ptr to the netdev being adjusted6447 * @features: the feature set that the stack is suggesting6448 */6449static int6450ice_set_features(struct net_device *netdev, netdev_features_t features)6451{6452 netdev_features_t changed = netdev->features ^ features;6453 struct ice_netdev_priv *np = netdev_priv(netdev);6454 struct ice_vsi *vsi = np->vsi;6455 struct ice_pf *pf = vsi->back;6456 int ret = 0;6457 6458 /* Don't set any netdev advanced features with device in Safe Mode */6459 if (ice_is_safe_mode(pf)) {6460 dev_err(ice_pf_to_dev(pf),6461 "Device is in Safe Mode - not enabling advanced netdev features\n");6462 return ret;6463 }6464 6465 /* Do not change setting during reset */6466 if (ice_is_reset_in_progress(pf->state)) {6467 dev_err(ice_pf_to_dev(pf),6468 "Device is resetting, changing advanced netdev features temporarily unavailable.\n");6469 return -EBUSY;6470 }6471 6472 /* Multiple features can be changed in one call so keep features in6473 * separate if/else statements to guarantee each feature is checked6474 */6475 if (changed & NETIF_F_RXHASH)6476 ice_vsi_manage_rss_lut(vsi, !!(features & NETIF_F_RXHASH));6477 6478 ret = ice_set_vlan_features(netdev, features);6479 if (ret)6480 return ret;6481 6482 /* Turn on receive of FCS aka CRC, and after setting this6483 * flag the packet data will have the 4 byte CRC appended6484 */6485 if (changed & NETIF_F_RXFCS) {6486 if ((features & NETIF_F_RXFCS) &&6487 (features & NETIF_VLAN_STRIPPING_FEATURES)) {6488 dev_err(ice_pf_to_dev(vsi->back),6489 "To disable FCS/CRC stripping, you must first disable VLAN stripping\n");6490 return -EIO;6491 }6492 6493 ice_vsi_cfg_crc_strip(vsi, !!(features & NETIF_F_RXFCS));6494 ret = ice_down_up(vsi);6495 if (ret)6496 return ret;6497 }6498 6499 if (changed & NETIF_F_NTUPLE) {6500 bool ena = !!(features & NETIF_F_NTUPLE);6501 6502 ice_vsi_manage_fdir(vsi, ena);6503 ena ? ice_init_arfs(vsi) : ice_clear_arfs(vsi);6504 }6505 6506 /* don't turn off hw_tc_offload when ADQ is already enabled */6507 if (!(features & NETIF_F_HW_TC) && ice_is_adq_active(pf)) {6508 dev_err(ice_pf_to_dev(pf), "ADQ is active, can't turn hw_tc_offload off\n");6509 return -EACCES;6510 }6511 6512 if (changed & NETIF_F_HW_TC) {6513 bool ena = !!(features & NETIF_F_HW_TC);6514 6515 ena ? set_bit(ICE_FLAG_CLS_FLOWER, pf->flags) :6516 clear_bit(ICE_FLAG_CLS_FLOWER, pf->flags);6517 }6518 6519 if (changed & NETIF_F_LOOPBACK)6520 ret = ice_set_loopback(vsi, !!(features & NETIF_F_LOOPBACK));6521 6522 return ret;6523}6524 6525/**6526 * ice_vsi_vlan_setup - Setup VLAN offload properties on a PF VSI6527 * @vsi: VSI to setup VLAN properties for6528 */6529static int ice_vsi_vlan_setup(struct ice_vsi *vsi)6530{6531 int err;6532 6533 err = ice_set_vlan_offload_features(vsi, vsi->netdev->features);6534 if (err)6535 return err;6536 6537 err = ice_set_vlan_filtering_features(vsi, vsi->netdev->features);6538 if (err)6539 return err;6540 6541 return ice_vsi_add_vlan_zero(vsi);6542}6543 6544/**6545 * ice_vsi_cfg_lan - Setup the VSI lan related config6546 * @vsi: the VSI being configured6547 *6548 * Return 0 on success and negative value on error6549 */6550int ice_vsi_cfg_lan(struct ice_vsi *vsi)6551{6552 int err;6553 6554 if (vsi->netdev && vsi->type == ICE_VSI_PF) {6555 ice_set_rx_mode(vsi->netdev);6556 6557 err = ice_vsi_vlan_setup(vsi);6558 if (err)6559 return err;6560 }6561 ice_vsi_cfg_dcb_rings(vsi);6562 6563 err = ice_vsi_cfg_lan_txqs(vsi);6564 if (!err && ice_is_xdp_ena_vsi(vsi))6565 err = ice_vsi_cfg_xdp_txqs(vsi);6566 if (!err)6567 err = ice_vsi_cfg_rxqs(vsi);6568 6569 return err;6570}6571 6572/* THEORY OF MODERATION:6573 * The ice driver hardware works differently than the hardware that DIMLIB was6574 * originally made for. ice hardware doesn't have packet count limits that6575 * can trigger an interrupt, but it *does* have interrupt rate limit support,6576 * which is hard-coded to a limit of 250,000 ints/second.6577 * If not using dynamic moderation, the INTRL value can be modified6578 * by ethtool rx-usecs-high.6579 */6580struct ice_dim {6581 /* the throttle rate for interrupts, basically worst case delay before6582 * an initial interrupt fires, value is stored in microseconds.6583 */6584 u16 itr;6585};6586 6587/* Make a different profile for Rx that doesn't allow quite so aggressive6588 * moderation at the high end (it maxes out at 126us or about 8k interrupts a6589 * second.6590 */6591static const struct ice_dim rx_profile[] = {6592 {2}, /* 500,000 ints/s, capped at 250K by INTRL */6593 {8}, /* 125,000 ints/s */6594 {16}, /* 62,500 ints/s */6595 {62}, /* 16,129 ints/s */6596 {126} /* 7,936 ints/s */6597};6598 6599/* The transmit profile, which has the same sorts of values6600 * as the previous struct6601 */6602static const struct ice_dim tx_profile[] = {6603 {2}, /* 500,000 ints/s, capped at 250K by INTRL */6604 {8}, /* 125,000 ints/s */6605 {40}, /* 16,125 ints/s */6606 {128}, /* 7,812 ints/s */6607 {256} /* 3,906 ints/s */6608};6609 6610static void ice_tx_dim_work(struct work_struct *work)6611{6612 struct ice_ring_container *rc;6613 struct dim *dim;6614 u16 itr;6615 6616 dim = container_of(work, struct dim, work);6617 rc = dim->priv;6618 6619 WARN_ON(dim->profile_ix >= ARRAY_SIZE(tx_profile));6620 6621 /* look up the values in our local table */6622 itr = tx_profile[dim->profile_ix].itr;6623 6624 ice_trace(tx_dim_work, container_of(rc, struct ice_q_vector, tx), dim);6625 ice_write_itr(rc, itr);6626 6627 dim->state = DIM_START_MEASURE;6628}6629 6630static void ice_rx_dim_work(struct work_struct *work)6631{6632 struct ice_ring_container *rc;6633 struct dim *dim;6634 u16 itr;6635 6636 dim = container_of(work, struct dim, work);6637 rc = dim->priv;6638 6639 WARN_ON(dim->profile_ix >= ARRAY_SIZE(rx_profile));6640 6641 /* look up the values in our local table */6642 itr = rx_profile[dim->profile_ix].itr;6643 6644 ice_trace(rx_dim_work, container_of(rc, struct ice_q_vector, rx), dim);6645 ice_write_itr(rc, itr);6646 6647 dim->state = DIM_START_MEASURE;6648}6649 6650#define ICE_DIM_DEFAULT_PROFILE_IX 16651 6652/**6653 * ice_init_moderation - set up interrupt moderation6654 * @q_vector: the vector containing rings to be configured6655 *6656 * Set up interrupt moderation registers, with the intent to do the right thing6657 * when called from reset or from probe, and whether or not dynamic moderation6658 * is enabled or not. Take special care to write all the registers in both6659 * dynamic moderation mode or not in order to make sure hardware is in a known6660 * state.6661 */6662static void ice_init_moderation(struct ice_q_vector *q_vector)6663{6664 struct ice_ring_container *rc;6665 bool tx_dynamic, rx_dynamic;6666 6667 rc = &q_vector->tx;6668 INIT_WORK(&rc->dim.work, ice_tx_dim_work);6669 rc->dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_EQE;6670 rc->dim.profile_ix = ICE_DIM_DEFAULT_PROFILE_IX;6671 rc->dim.priv = rc;6672 tx_dynamic = ITR_IS_DYNAMIC(rc);6673 6674 /* set the initial TX ITR to match the above */6675 ice_write_itr(rc, tx_dynamic ?6676 tx_profile[rc->dim.profile_ix].itr : rc->itr_setting);6677 6678 rc = &q_vector->rx;6679 INIT_WORK(&rc->dim.work, ice_rx_dim_work);6680 rc->dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_EQE;6681 rc->dim.profile_ix = ICE_DIM_DEFAULT_PROFILE_IX;6682 rc->dim.priv = rc;6683 rx_dynamic = ITR_IS_DYNAMIC(rc);6684 6685 /* set the initial RX ITR to match the above */6686 ice_write_itr(rc, rx_dynamic ? rx_profile[rc->dim.profile_ix].itr :6687 rc->itr_setting);6688 6689 ice_set_q_vector_intrl(q_vector);6690}6691 6692/**6693 * ice_napi_enable_all - Enable NAPI for all q_vectors in the VSI6694 * @vsi: the VSI being configured6695 */6696static void ice_napi_enable_all(struct ice_vsi *vsi)6697{6698 int q_idx;6699 6700 if (!vsi->netdev)6701 return;6702 6703 ice_for_each_q_vector(vsi, q_idx) {6704 struct ice_q_vector *q_vector = vsi->q_vectors[q_idx];6705 6706 ice_init_moderation(q_vector);6707 6708 if (q_vector->rx.rx_ring || q_vector->tx.tx_ring)6709 napi_enable(&q_vector->napi);6710 }6711}6712 6713/**6714 * ice_up_complete - Finish the last steps of bringing up a connection6715 * @vsi: The VSI being configured6716 *6717 * Return 0 on success and negative value on error6718 */6719static int ice_up_complete(struct ice_vsi *vsi)6720{6721 struct ice_pf *pf = vsi->back;6722 int err;6723 6724 ice_vsi_cfg_msix(vsi);6725 6726 /* Enable only Rx rings, Tx rings were enabled by the FW when the6727 * Tx queue group list was configured and the context bits were6728 * programmed using ice_vsi_cfg_txqs6729 */6730 err = ice_vsi_start_all_rx_rings(vsi);6731 if (err)6732 return err;6733 6734 clear_bit(ICE_VSI_DOWN, vsi->state);6735 ice_napi_enable_all(vsi);6736 ice_vsi_ena_irq(vsi);6737 6738 if (vsi->port_info &&6739 (vsi->port_info->phy.link_info.link_info & ICE_AQ_LINK_UP) &&6740 ((vsi->netdev && (vsi->type == ICE_VSI_PF ||6741 vsi->type == ICE_VSI_SF)))) {6742 ice_print_link_msg(vsi, true);6743 netif_tx_start_all_queues(vsi->netdev);6744 netif_carrier_on(vsi->netdev);6745 ice_ptp_link_change(pf, pf->hw.pf_id, true);6746 }6747 6748 /* Perform an initial read of the statistics registers now to6749 * set the baseline so counters are ready when interface is up6750 */6751 ice_update_eth_stats(vsi);6752 6753 if (vsi->type == ICE_VSI_PF)6754 ice_service_task_schedule(pf);6755 6756 return 0;6757}6758 6759/**6760 * ice_up - Bring the connection back up after being down6761 * @vsi: VSI being configured6762 */6763int ice_up(struct ice_vsi *vsi)6764{6765 int err;6766 6767 err = ice_vsi_cfg_lan(vsi);6768 if (!err)6769 err = ice_up_complete(vsi);6770 6771 return err;6772}6773 6774/**6775 * ice_fetch_u64_stats_per_ring - get packets and bytes stats per ring6776 * @syncp: pointer to u64_stats_sync6777 * @stats: stats that pkts and bytes count will be taken from6778 * @pkts: packets stats counter6779 * @bytes: bytes stats counter6780 *6781 * This function fetches stats from the ring considering the atomic operations6782 * that needs to be performed to read u64 values in 32 bit machine.6783 */6784void6785ice_fetch_u64_stats_per_ring(struct u64_stats_sync *syncp,6786 struct ice_q_stats stats, u64 *pkts, u64 *bytes)6787{6788 unsigned int start;6789 6790 do {6791 start = u64_stats_fetch_begin(syncp);6792 *pkts = stats.pkts;6793 *bytes = stats.bytes;6794 } while (u64_stats_fetch_retry(syncp, start));6795}6796 6797/**6798 * ice_update_vsi_tx_ring_stats - Update VSI Tx ring stats counters6799 * @vsi: the VSI to be updated6800 * @vsi_stats: the stats struct to be updated6801 * @rings: rings to work on6802 * @count: number of rings6803 */6804static void6805ice_update_vsi_tx_ring_stats(struct ice_vsi *vsi,6806 struct rtnl_link_stats64 *vsi_stats,6807 struct ice_tx_ring **rings, u16 count)6808{6809 u16 i;6810 6811 for (i = 0; i < count; i++) {6812 struct ice_tx_ring *ring;6813 u64 pkts = 0, bytes = 0;6814 6815 ring = READ_ONCE(rings[i]);6816 if (!ring || !ring->ring_stats)6817 continue;6818 ice_fetch_u64_stats_per_ring(&ring->ring_stats->syncp,6819 ring->ring_stats->stats, &pkts,6820 &bytes);6821 vsi_stats->tx_packets += pkts;6822 vsi_stats->tx_bytes += bytes;6823 vsi->tx_restart += ring->ring_stats->tx_stats.restart_q;6824 vsi->tx_busy += ring->ring_stats->tx_stats.tx_busy;6825 vsi->tx_linearize += ring->ring_stats->tx_stats.tx_linearize;6826 }6827}6828 6829/**6830 * ice_update_vsi_ring_stats - Update VSI stats counters6831 * @vsi: the VSI to be updated6832 */6833static void ice_update_vsi_ring_stats(struct ice_vsi *vsi)6834{6835 struct rtnl_link_stats64 *net_stats, *stats_prev;6836 struct rtnl_link_stats64 *vsi_stats;6837 struct ice_pf *pf = vsi->back;6838 u64 pkts, bytes;6839 int i;6840 6841 vsi_stats = kzalloc(sizeof(*vsi_stats), GFP_ATOMIC);6842 if (!vsi_stats)6843 return;6844 6845 /* reset non-netdev (extended) stats */6846 vsi->tx_restart = 0;6847 vsi->tx_busy = 0;6848 vsi->tx_linearize = 0;6849 vsi->rx_buf_failed = 0;6850 vsi->rx_page_failed = 0;6851 6852 rcu_read_lock();6853 6854 /* update Tx rings counters */6855 ice_update_vsi_tx_ring_stats(vsi, vsi_stats, vsi->tx_rings,6856 vsi->num_txq);6857 6858 /* update Rx rings counters */6859 ice_for_each_rxq(vsi, i) {6860 struct ice_rx_ring *ring = READ_ONCE(vsi->rx_rings[i]);6861 struct ice_ring_stats *ring_stats;6862 6863 ring_stats = ring->ring_stats;6864 ice_fetch_u64_stats_per_ring(&ring_stats->syncp,6865 ring_stats->stats, &pkts,6866 &bytes);6867 vsi_stats->rx_packets += pkts;6868 vsi_stats->rx_bytes += bytes;6869 vsi->rx_buf_failed += ring_stats->rx_stats.alloc_buf_failed;6870 vsi->rx_page_failed += ring_stats->rx_stats.alloc_page_failed;6871 }6872 6873 /* update XDP Tx rings counters */6874 if (ice_is_xdp_ena_vsi(vsi))6875 ice_update_vsi_tx_ring_stats(vsi, vsi_stats, vsi->xdp_rings,6876 vsi->num_xdp_txq);6877 6878 rcu_read_unlock();6879 6880 net_stats = &vsi->net_stats;6881 stats_prev = &vsi->net_stats_prev;6882 6883 /* Update netdev counters, but keep in mind that values could start at6884 * random value after PF reset. And as we increase the reported stat by6885 * diff of Prev-Cur, we need to be sure that Prev is valid. If it's not,6886 * let's skip this round.6887 */6888 if (likely(pf->stat_prev_loaded)) {6889 net_stats->tx_packets += vsi_stats->tx_packets - stats_prev->tx_packets;6890 net_stats->tx_bytes += vsi_stats->tx_bytes - stats_prev->tx_bytes;6891 net_stats->rx_packets += vsi_stats->rx_packets - stats_prev->rx_packets;6892 net_stats->rx_bytes += vsi_stats->rx_bytes - stats_prev->rx_bytes;6893 }6894 6895 stats_prev->tx_packets = vsi_stats->tx_packets;6896 stats_prev->tx_bytes = vsi_stats->tx_bytes;6897 stats_prev->rx_packets = vsi_stats->rx_packets;6898 stats_prev->rx_bytes = vsi_stats->rx_bytes;6899 6900 kfree(vsi_stats);6901}6902 6903/**6904 * ice_update_vsi_stats - Update VSI stats counters6905 * @vsi: the VSI to be updated6906 */6907void ice_update_vsi_stats(struct ice_vsi *vsi)6908{6909 struct rtnl_link_stats64 *cur_ns = &vsi->net_stats;6910 struct ice_eth_stats *cur_es = &vsi->eth_stats;6911 struct ice_pf *pf = vsi->back;6912 6913 if (test_bit(ICE_VSI_DOWN, vsi->state) ||6914 test_bit(ICE_CFG_BUSY, pf->state))6915 return;6916 6917 /* get stats as recorded by Tx/Rx rings */6918 ice_update_vsi_ring_stats(vsi);6919 6920 /* get VSI stats as recorded by the hardware */6921 ice_update_eth_stats(vsi);6922 6923 cur_ns->tx_errors = cur_es->tx_errors;6924 cur_ns->rx_dropped = cur_es->rx_discards;6925 cur_ns->tx_dropped = cur_es->tx_discards;6926 cur_ns->multicast = cur_es->rx_multicast;6927 6928 /* update some more netdev stats if this is main VSI */6929 if (vsi->type == ICE_VSI_PF) {6930 cur_ns->rx_crc_errors = pf->stats.crc_errors;6931 cur_ns->rx_errors = pf->stats.crc_errors +6932 pf->stats.illegal_bytes +6933 pf->stats.rx_undersize +6934 pf->hw_csum_rx_error +6935 pf->stats.rx_jabber +6936 pf->stats.rx_fragments +6937 pf->stats.rx_oversize;6938 /* record drops from the port level */6939 cur_ns->rx_missed_errors = pf->stats.eth.rx_discards;6940 }6941}6942 6943/**6944 * ice_update_pf_stats - Update PF port stats counters6945 * @pf: PF whose stats needs to be updated6946 */6947void ice_update_pf_stats(struct ice_pf *pf)6948{6949 struct ice_hw_port_stats *prev_ps, *cur_ps;6950 struct ice_hw *hw = &pf->hw;6951 u16 fd_ctr_base;6952 u8 port;6953 6954 port = hw->port_info->lport;6955 prev_ps = &pf->stats_prev;6956 cur_ps = &pf->stats;6957 6958 if (ice_is_reset_in_progress(pf->state))6959 pf->stat_prev_loaded = false;6960 6961 ice_stat_update40(hw, GLPRT_GORCL(port), pf->stat_prev_loaded,6962 &prev_ps->eth.rx_bytes,6963 &cur_ps->eth.rx_bytes);6964 6965 ice_stat_update40(hw, GLPRT_UPRCL(port), pf->stat_prev_loaded,6966 &prev_ps->eth.rx_unicast,6967 &cur_ps->eth.rx_unicast);6968 6969 ice_stat_update40(hw, GLPRT_MPRCL(port), pf->stat_prev_loaded,6970 &prev_ps->eth.rx_multicast,6971 &cur_ps->eth.rx_multicast);6972 6973 ice_stat_update40(hw, GLPRT_BPRCL(port), pf->stat_prev_loaded,6974 &prev_ps->eth.rx_broadcast,6975 &cur_ps->eth.rx_broadcast);6976 6977 ice_stat_update32(hw, PRTRPB_RDPC, pf->stat_prev_loaded,6978 &prev_ps->eth.rx_discards,6979 &cur_ps->eth.rx_discards);6980 6981 ice_stat_update40(hw, GLPRT_GOTCL(port), pf->stat_prev_loaded,6982 &prev_ps->eth.tx_bytes,6983 &cur_ps->eth.tx_bytes);6984 6985 ice_stat_update40(hw, GLPRT_UPTCL(port), pf->stat_prev_loaded,6986 &prev_ps->eth.tx_unicast,6987 &cur_ps->eth.tx_unicast);6988 6989 ice_stat_update40(hw, GLPRT_MPTCL(port), pf->stat_prev_loaded,6990 &prev_ps->eth.tx_multicast,6991 &cur_ps->eth.tx_multicast);6992 6993 ice_stat_update40(hw, GLPRT_BPTCL(port), pf->stat_prev_loaded,6994 &prev_ps->eth.tx_broadcast,6995 &cur_ps->eth.tx_broadcast);6996 6997 ice_stat_update32(hw, GLPRT_TDOLD(port), pf->stat_prev_loaded,6998 &prev_ps->tx_dropped_link_down,6999 &cur_ps->tx_dropped_link_down);7000 7001 ice_stat_update40(hw, GLPRT_PRC64L(port), pf->stat_prev_loaded,7002 &prev_ps->rx_size_64, &cur_ps->rx_size_64);7003 7004 ice_stat_update40(hw, GLPRT_PRC127L(port), pf->stat_prev_loaded,7005 &prev_ps->rx_size_127, &cur_ps->rx_size_127);7006 7007 ice_stat_update40(hw, GLPRT_PRC255L(port), pf->stat_prev_loaded,7008 &prev_ps->rx_size_255, &cur_ps->rx_size_255);7009 7010 ice_stat_update40(hw, GLPRT_PRC511L(port), pf->stat_prev_loaded,7011 &prev_ps->rx_size_511, &cur_ps->rx_size_511);7012 7013 ice_stat_update40(hw, GLPRT_PRC1023L(port), pf->stat_prev_loaded,7014 &prev_ps->rx_size_1023, &cur_ps->rx_size_1023);7015 7016 ice_stat_update40(hw, GLPRT_PRC1522L(port), pf->stat_prev_loaded,7017 &prev_ps->rx_size_1522, &cur_ps->rx_size_1522);7018 7019 ice_stat_update40(hw, GLPRT_PRC9522L(port), pf->stat_prev_loaded,7020 &prev_ps->rx_size_big, &cur_ps->rx_size_big);7021 7022 ice_stat_update40(hw, GLPRT_PTC64L(port), pf->stat_prev_loaded,7023 &prev_ps->tx_size_64, &cur_ps->tx_size_64);7024 7025 ice_stat_update40(hw, GLPRT_PTC127L(port), pf->stat_prev_loaded,7026 &prev_ps->tx_size_127, &cur_ps->tx_size_127);7027 7028 ice_stat_update40(hw, GLPRT_PTC255L(port), pf->stat_prev_loaded,7029 &prev_ps->tx_size_255, &cur_ps->tx_size_255);7030 7031 ice_stat_update40(hw, GLPRT_PTC511L(port), pf->stat_prev_loaded,7032 &prev_ps->tx_size_511, &cur_ps->tx_size_511);7033 7034 ice_stat_update40(hw, GLPRT_PTC1023L(port), pf->stat_prev_loaded,7035 &prev_ps->tx_size_1023, &cur_ps->tx_size_1023);7036 7037 ice_stat_update40(hw, GLPRT_PTC1522L(port), pf->stat_prev_loaded,7038 &prev_ps->tx_size_1522, &cur_ps->tx_size_1522);7039 7040 ice_stat_update40(hw, GLPRT_PTC9522L(port), pf->stat_prev_loaded,7041 &prev_ps->tx_size_big, &cur_ps->tx_size_big);7042 7043 fd_ctr_base = hw->fd_ctr_base;7044 7045 ice_stat_update40(hw,7046 GLSTAT_FD_CNT0L(ICE_FD_SB_STAT_IDX(fd_ctr_base)),7047 pf->stat_prev_loaded, &prev_ps->fd_sb_match,7048 &cur_ps->fd_sb_match);7049 ice_stat_update32(hw, GLPRT_LXONRXC(port), pf->stat_prev_loaded,7050 &prev_ps->link_xon_rx, &cur_ps->link_xon_rx);7051 7052 ice_stat_update32(hw, GLPRT_LXOFFRXC(port), pf->stat_prev_loaded,7053 &prev_ps->link_xoff_rx, &cur_ps->link_xoff_rx);7054 7055 ice_stat_update32(hw, GLPRT_LXONTXC(port), pf->stat_prev_loaded,7056 &prev_ps->link_xon_tx, &cur_ps->link_xon_tx);7057 7058 ice_stat_update32(hw, GLPRT_LXOFFTXC(port), pf->stat_prev_loaded,7059 &prev_ps->link_xoff_tx, &cur_ps->link_xoff_tx);7060 7061 ice_update_dcb_stats(pf);7062 7063 ice_stat_update32(hw, GLPRT_CRCERRS(port), pf->stat_prev_loaded,7064 &prev_ps->crc_errors, &cur_ps->crc_errors);7065 7066 ice_stat_update32(hw, GLPRT_ILLERRC(port), pf->stat_prev_loaded,7067 &prev_ps->illegal_bytes, &cur_ps->illegal_bytes);7068 7069 ice_stat_update32(hw, GLPRT_MLFC(port), pf->stat_prev_loaded,7070 &prev_ps->mac_local_faults,7071 &cur_ps->mac_local_faults);7072 7073 ice_stat_update32(hw, GLPRT_MRFC(port), pf->stat_prev_loaded,7074 &prev_ps->mac_remote_faults,7075 &cur_ps->mac_remote_faults);7076 7077 ice_stat_update32(hw, GLPRT_RUC(port), pf->stat_prev_loaded,7078 &prev_ps->rx_undersize, &cur_ps->rx_undersize);7079 7080 ice_stat_update32(hw, GLPRT_RFC(port), pf->stat_prev_loaded,7081 &prev_ps->rx_fragments, &cur_ps->rx_fragments);7082 7083 ice_stat_update32(hw, GLPRT_ROC(port), pf->stat_prev_loaded,7084 &prev_ps->rx_oversize, &cur_ps->rx_oversize);7085 7086 ice_stat_update32(hw, GLPRT_RJC(port), pf->stat_prev_loaded,7087 &prev_ps->rx_jabber, &cur_ps->rx_jabber);7088 7089 cur_ps->fd_sb_status = test_bit(ICE_FLAG_FD_ENA, pf->flags) ? 1 : 0;7090 7091 pf->stat_prev_loaded = true;7092}7093 7094/**7095 * ice_get_stats64 - get statistics for network device structure7096 * @netdev: network interface device structure7097 * @stats: main device statistics structure7098 */7099void ice_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats)7100{7101 struct ice_netdev_priv *np = netdev_priv(netdev);7102 struct rtnl_link_stats64 *vsi_stats;7103 struct ice_vsi *vsi = np->vsi;7104 7105 vsi_stats = &vsi->net_stats;7106 7107 if (!vsi->num_txq || !vsi->num_rxq)7108 return;7109 7110 /* netdev packet/byte stats come from ring counter. These are obtained7111 * by summing up ring counters (done by ice_update_vsi_ring_stats).7112 * But, only call the update routine and read the registers if VSI is7113 * not down.7114 */7115 if (!test_bit(ICE_VSI_DOWN, vsi->state))7116 ice_update_vsi_ring_stats(vsi);7117 stats->tx_packets = vsi_stats->tx_packets;7118 stats->tx_bytes = vsi_stats->tx_bytes;7119 stats->rx_packets = vsi_stats->rx_packets;7120 stats->rx_bytes = vsi_stats->rx_bytes;7121 7122 /* The rest of the stats can be read from the hardware but instead we7123 * just return values that the watchdog task has already obtained from7124 * the hardware.7125 */7126 stats->multicast = vsi_stats->multicast;7127 stats->tx_errors = vsi_stats->tx_errors;7128 stats->tx_dropped = vsi_stats->tx_dropped;7129 stats->rx_errors = vsi_stats->rx_errors;7130 stats->rx_dropped = vsi_stats->rx_dropped;7131 stats->rx_crc_errors = vsi_stats->rx_crc_errors;7132 stats->rx_length_errors = vsi_stats->rx_length_errors;7133}7134 7135/**7136 * ice_napi_disable_all - Disable NAPI for all q_vectors in the VSI7137 * @vsi: VSI having NAPI disabled7138 */7139static void ice_napi_disable_all(struct ice_vsi *vsi)7140{7141 int q_idx;7142 7143 if (!vsi->netdev)7144 return;7145 7146 ice_for_each_q_vector(vsi, q_idx) {7147 struct ice_q_vector *q_vector = vsi->q_vectors[q_idx];7148 7149 if (q_vector->rx.rx_ring || q_vector->tx.tx_ring)7150 napi_disable(&q_vector->napi);7151 7152 cancel_work_sync(&q_vector->tx.dim.work);7153 cancel_work_sync(&q_vector->rx.dim.work);7154 }7155}7156 7157/**7158 * ice_vsi_dis_irq - Mask off queue interrupt generation on the VSI7159 * @vsi: the VSI being un-configured7160 */7161static void ice_vsi_dis_irq(struct ice_vsi *vsi)7162{7163 struct ice_pf *pf = vsi->back;7164 struct ice_hw *hw = &pf->hw;7165 u32 val;7166 int i;7167 7168 /* disable interrupt causation from each Rx queue; Tx queues are7169 * handled in ice_vsi_stop_tx_ring()7170 */7171 if (vsi->rx_rings) {7172 ice_for_each_rxq(vsi, i) {7173 if (vsi->rx_rings[i]) {7174 u16 reg;7175 7176 reg = vsi->rx_rings[i]->reg_idx;7177 val = rd32(hw, QINT_RQCTL(reg));7178 val &= ~QINT_RQCTL_CAUSE_ENA_M;7179 wr32(hw, QINT_RQCTL(reg), val);7180 }7181 }7182 }7183 7184 /* disable each interrupt */7185 ice_for_each_q_vector(vsi, i) {7186 if (!vsi->q_vectors[i])7187 continue;7188 wr32(hw, GLINT_DYN_CTL(vsi->q_vectors[i]->reg_idx), 0);7189 }7190 7191 ice_flush(hw);7192 7193 /* don't call synchronize_irq() for VF's from the host */7194 if (vsi->type == ICE_VSI_VF)7195 return;7196 7197 ice_for_each_q_vector(vsi, i)7198 synchronize_irq(vsi->q_vectors[i]->irq.virq);7199}7200 7201/**7202 * ice_down - Shutdown the connection7203 * @vsi: The VSI being stopped7204 *7205 * Caller of this function is expected to set the vsi->state ICE_DOWN bit7206 */7207int ice_down(struct ice_vsi *vsi)7208{7209 int i, tx_err, rx_err, vlan_err = 0;7210 7211 WARN_ON(!test_bit(ICE_VSI_DOWN, vsi->state));7212 7213 if (vsi->netdev) {7214 vlan_err = ice_vsi_del_vlan_zero(vsi);7215 ice_ptp_link_change(vsi->back, vsi->back->hw.pf_id, false);7216 netif_carrier_off(vsi->netdev);7217 netif_tx_disable(vsi->netdev);7218 }7219 7220 ice_vsi_dis_irq(vsi);7221 7222 tx_err = ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0);7223 if (tx_err)7224 netdev_err(vsi->netdev, "Failed stop Tx rings, VSI %d error %d\n",7225 vsi->vsi_num, tx_err);7226 if (!tx_err && vsi->xdp_rings) {7227 tx_err = ice_vsi_stop_xdp_tx_rings(vsi);7228 if (tx_err)7229 netdev_err(vsi->netdev, "Failed stop XDP rings, VSI %d error %d\n",7230 vsi->vsi_num, tx_err);7231 }7232 7233 rx_err = ice_vsi_stop_all_rx_rings(vsi);7234 if (rx_err)7235 netdev_err(vsi->netdev, "Failed stop Rx rings, VSI %d error %d\n",7236 vsi->vsi_num, rx_err);7237 7238 ice_napi_disable_all(vsi);7239 7240 ice_for_each_txq(vsi, i)7241 ice_clean_tx_ring(vsi->tx_rings[i]);7242 7243 if (vsi->xdp_rings)7244 ice_for_each_xdp_txq(vsi, i)7245 ice_clean_tx_ring(vsi->xdp_rings[i]);7246 7247 ice_for_each_rxq(vsi, i)7248 ice_clean_rx_ring(vsi->rx_rings[i]);7249 7250 if (tx_err || rx_err || vlan_err) {7251 netdev_err(vsi->netdev, "Failed to close VSI 0x%04X on switch 0x%04X\n",7252 vsi->vsi_num, vsi->vsw->sw_id);7253 return -EIO;7254 }7255 7256 return 0;7257}7258 7259/**7260 * ice_down_up - shutdown the VSI connection and bring it up7261 * @vsi: the VSI to be reconnected7262 */7263int ice_down_up(struct ice_vsi *vsi)7264{7265 int ret;7266 7267 /* if DOWN already set, nothing to do */7268 if (test_and_set_bit(ICE_VSI_DOWN, vsi->state))7269 return 0;7270 7271 ret = ice_down(vsi);7272 if (ret)7273 return ret;7274 7275 ret = ice_up(vsi);7276 if (ret) {7277 netdev_err(vsi->netdev, "reallocating resources failed during netdev features change, may need to reload driver\n");7278 return ret;7279 }7280 7281 return 0;7282}7283 7284/**7285 * ice_vsi_setup_tx_rings - Allocate VSI Tx queue resources7286 * @vsi: VSI having resources allocated7287 *7288 * Return 0 on success, negative on failure7289 */7290int ice_vsi_setup_tx_rings(struct ice_vsi *vsi)7291{7292 int i, err = 0;7293 7294 if (!vsi->num_txq) {7295 dev_err(ice_pf_to_dev(vsi->back), "VSI %d has 0 Tx queues\n",7296 vsi->vsi_num);7297 return -EINVAL;7298 }7299 7300 ice_for_each_txq(vsi, i) {7301 struct ice_tx_ring *ring = vsi->tx_rings[i];7302 7303 if (!ring)7304 return -EINVAL;7305 7306 if (vsi->netdev)7307 ring->netdev = vsi->netdev;7308 err = ice_setup_tx_ring(ring);7309 if (err)7310 break;7311 }7312 7313 return err;7314}7315 7316/**7317 * ice_vsi_setup_rx_rings - Allocate VSI Rx queue resources7318 * @vsi: VSI having resources allocated7319 *7320 * Return 0 on success, negative on failure7321 */7322int ice_vsi_setup_rx_rings(struct ice_vsi *vsi)7323{7324 int i, err = 0;7325 7326 if (!vsi->num_rxq) {7327 dev_err(ice_pf_to_dev(vsi->back), "VSI %d has 0 Rx queues\n",7328 vsi->vsi_num);7329 return -EINVAL;7330 }7331 7332 ice_for_each_rxq(vsi, i) {7333 struct ice_rx_ring *ring = vsi->rx_rings[i];7334 7335 if (!ring)7336 return -EINVAL;7337 7338 if (vsi->netdev)7339 ring->netdev = vsi->netdev;7340 err = ice_setup_rx_ring(ring);7341 if (err)7342 break;7343 }7344 7345 return err;7346}7347 7348/**7349 * ice_vsi_open_ctrl - open control VSI for use7350 * @vsi: the VSI to open7351 *7352 * Initialization of the Control VSI7353 *7354 * Returns 0 on success, negative value on error7355 */7356int ice_vsi_open_ctrl(struct ice_vsi *vsi)7357{7358 char int_name[ICE_INT_NAME_STR_LEN];7359 struct ice_pf *pf = vsi->back;7360 struct device *dev;7361 int err;7362 7363 dev = ice_pf_to_dev(pf);7364 /* allocate descriptors */7365 err = ice_vsi_setup_tx_rings(vsi);7366 if (err)7367 goto err_setup_tx;7368 7369 err = ice_vsi_setup_rx_rings(vsi);7370 if (err)7371 goto err_setup_rx;7372 7373 err = ice_vsi_cfg_lan(vsi);7374 if (err)7375 goto err_setup_rx;7376 7377 snprintf(int_name, sizeof(int_name) - 1, "%s-%s:ctrl",7378 dev_driver_string(dev), dev_name(dev));7379 err = ice_vsi_req_irq_msix(vsi, int_name);7380 if (err)7381 goto err_setup_rx;7382 7383 ice_vsi_cfg_msix(vsi);7384 7385 err = ice_vsi_start_all_rx_rings(vsi);7386 if (err)7387 goto err_up_complete;7388 7389 clear_bit(ICE_VSI_DOWN, vsi->state);7390 ice_vsi_ena_irq(vsi);7391 7392 return 0;7393 7394err_up_complete:7395 ice_down(vsi);7396err_setup_rx:7397 ice_vsi_free_rx_rings(vsi);7398err_setup_tx:7399 ice_vsi_free_tx_rings(vsi);7400 7401 return err;7402}7403 7404/**7405 * ice_vsi_open - Called when a network interface is made active7406 * @vsi: the VSI to open7407 *7408 * Initialization of the VSI7409 *7410 * Returns 0 on success, negative value on error7411 */7412int ice_vsi_open(struct ice_vsi *vsi)7413{7414 char int_name[ICE_INT_NAME_STR_LEN];7415 struct ice_pf *pf = vsi->back;7416 int err;7417 7418 /* allocate descriptors */7419 err = ice_vsi_setup_tx_rings(vsi);7420 if (err)7421 goto err_setup_tx;7422 7423 err = ice_vsi_setup_rx_rings(vsi);7424 if (err)7425 goto err_setup_rx;7426 7427 err = ice_vsi_cfg_lan(vsi);7428 if (err)7429 goto err_setup_rx;7430 7431 snprintf(int_name, sizeof(int_name) - 1, "%s-%s",7432 dev_driver_string(ice_pf_to_dev(pf)), vsi->netdev->name);7433 err = ice_vsi_req_irq_msix(vsi, int_name);7434 if (err)7435 goto err_setup_rx;7436 7437 ice_vsi_cfg_netdev_tc(vsi, vsi->tc_cfg.ena_tc);7438 7439 if (vsi->type == ICE_VSI_PF || vsi->type == ICE_VSI_SF) {7440 /* Notify the stack of the actual queue counts. */7441 err = netif_set_real_num_tx_queues(vsi->netdev, vsi->num_txq);7442 if (err)7443 goto err_set_qs;7444 7445 err = netif_set_real_num_rx_queues(vsi->netdev, vsi->num_rxq);7446 if (err)7447 goto err_set_qs;7448 7449 ice_vsi_set_napi_queues(vsi);7450 }7451 7452 err = ice_up_complete(vsi);7453 if (err)7454 goto err_up_complete;7455 7456 return 0;7457 7458err_up_complete:7459 ice_down(vsi);7460err_set_qs:7461 ice_vsi_free_irq(vsi);7462err_setup_rx:7463 ice_vsi_free_rx_rings(vsi);7464err_setup_tx:7465 ice_vsi_free_tx_rings(vsi);7466 7467 return err;7468}7469 7470/**7471 * ice_vsi_release_all - Delete all VSIs7472 * @pf: PF from which all VSIs are being removed7473 */7474static void ice_vsi_release_all(struct ice_pf *pf)7475{7476 int err, i;7477 7478 if (!pf->vsi)7479 return;7480 7481 ice_for_each_vsi(pf, i) {7482 if (!pf->vsi[i])7483 continue;7484 7485 if (pf->vsi[i]->type == ICE_VSI_CHNL)7486 continue;7487 7488 err = ice_vsi_release(pf->vsi[i]);7489 if (err)7490 dev_dbg(ice_pf_to_dev(pf), "Failed to release pf->vsi[%d], err %d, vsi_num = %d\n",7491 i, err, pf->vsi[i]->vsi_num);7492 }7493}7494 7495/**7496 * ice_vsi_rebuild_by_type - Rebuild VSI of a given type7497 * @pf: pointer to the PF instance7498 * @type: VSI type to rebuild7499 *7500 * Iterates through the pf->vsi array and rebuilds VSIs of the requested type7501 */7502static int ice_vsi_rebuild_by_type(struct ice_pf *pf, enum ice_vsi_type type)7503{7504 struct device *dev = ice_pf_to_dev(pf);7505 int i, err;7506 7507 ice_for_each_vsi(pf, i) {7508 struct ice_vsi *vsi = pf->vsi[i];7509 7510 if (!vsi || vsi->type != type)7511 continue;7512 7513 /* rebuild the VSI */7514 err = ice_vsi_rebuild(vsi, ICE_VSI_FLAG_INIT);7515 if (err) {7516 dev_err(dev, "rebuild VSI failed, err %d, VSI index %d, type %s\n",7517 err, vsi->idx, ice_vsi_type_str(type));7518 return err;7519 }7520 7521 /* replay filters for the VSI */7522 err = ice_replay_vsi(&pf->hw, vsi->idx);7523 if (err) {7524 dev_err(dev, "replay VSI failed, error %d, VSI index %d, type %s\n",7525 err, vsi->idx, ice_vsi_type_str(type));7526 return err;7527 }7528 7529 /* Re-map HW VSI number, using VSI handle that has been7530 * previously validated in ice_replay_vsi() call above7531 */7532 vsi->vsi_num = ice_get_hw_vsi_num(&pf->hw, vsi->idx);7533 7534 /* enable the VSI */7535 err = ice_ena_vsi(vsi, false);7536 if (err) {7537 dev_err(dev, "enable VSI failed, err %d, VSI index %d, type %s\n",7538 err, vsi->idx, ice_vsi_type_str(type));7539 return err;7540 }7541 7542 dev_info(dev, "VSI rebuilt. VSI index %d, type %s\n", vsi->idx,7543 ice_vsi_type_str(type));7544 }7545 7546 return 0;7547}7548 7549/**7550 * ice_update_pf_netdev_link - Update PF netdev link status7551 * @pf: pointer to the PF instance7552 */7553static void ice_update_pf_netdev_link(struct ice_pf *pf)7554{7555 bool link_up;7556 int i;7557 7558 ice_for_each_vsi(pf, i) {7559 struct ice_vsi *vsi = pf->vsi[i];7560 7561 if (!vsi || vsi->type != ICE_VSI_PF)7562 return;7563 7564 ice_get_link_status(pf->vsi[i]->port_info, &link_up);7565 if (link_up) {7566 netif_carrier_on(pf->vsi[i]->netdev);7567 netif_tx_wake_all_queues(pf->vsi[i]->netdev);7568 } else {7569 netif_carrier_off(pf->vsi[i]->netdev);7570 netif_tx_stop_all_queues(pf->vsi[i]->netdev);7571 }7572 }7573}7574 7575/**7576 * ice_rebuild - rebuild after reset7577 * @pf: PF to rebuild7578 * @reset_type: type of reset7579 *7580 * Do not rebuild VF VSI in this flow because that is already handled via7581 * ice_reset_all_vfs(). This is because requirements for resetting a VF after a7582 * PFR/CORER/GLOBER/etc. are different than the normal flow. Also, we don't want7583 * to reset/rebuild all the VF VSI twice.7584 */7585static void ice_rebuild(struct ice_pf *pf, enum ice_reset_req reset_type)7586{7587 struct ice_vsi *vsi = ice_get_main_vsi(pf);7588 struct device *dev = ice_pf_to_dev(pf);7589 struct ice_hw *hw = &pf->hw;7590 bool dvm;7591 int err;7592 7593 if (test_bit(ICE_DOWN, pf->state))7594 goto clear_recovery;7595 7596 dev_dbg(dev, "rebuilding PF after reset_type=%d\n", reset_type);7597 7598#define ICE_EMP_RESET_SLEEP_MS 50007599 if (reset_type == ICE_RESET_EMPR) {7600 /* If an EMP reset has occurred, any previously pending flash7601 * update will have completed. We no longer know whether or7602 * not the NVM update EMP reset is restricted.7603 */7604 pf->fw_emp_reset_disabled = false;7605 7606 msleep(ICE_EMP_RESET_SLEEP_MS);7607 }7608 7609 err = ice_init_all_ctrlq(hw);7610 if (err) {7611 dev_err(dev, "control queues init failed %d\n", err);7612 goto err_init_ctrlq;7613 }7614 7615 /* if DDP was previously loaded successfully */7616 if (!ice_is_safe_mode(pf)) {7617 /* reload the SW DB of filter tables */7618 if (reset_type == ICE_RESET_PFR)7619 ice_fill_blk_tbls(hw);7620 else7621 /* Reload DDP Package after CORER/GLOBR reset */7622 ice_load_pkg(NULL, pf);7623 }7624 7625 err = ice_clear_pf_cfg(hw);7626 if (err) {7627 dev_err(dev, "clear PF configuration failed %d\n", err);7628 goto err_init_ctrlq;7629 }7630 7631 ice_clear_pxe_mode(hw);7632 7633 err = ice_init_nvm(hw);7634 if (err) {7635 dev_err(dev, "ice_init_nvm failed %d\n", err);7636 goto err_init_ctrlq;7637 }7638 7639 err = ice_get_caps(hw);7640 if (err) {7641 dev_err(dev, "ice_get_caps failed %d\n", err);7642 goto err_init_ctrlq;7643 }7644 7645 err = ice_aq_set_mac_cfg(hw, ICE_AQ_SET_MAC_FRAME_SIZE_MAX, NULL);7646 if (err) {7647 dev_err(dev, "set_mac_cfg failed %d\n", err);7648 goto err_init_ctrlq;7649 }7650 7651 dvm = ice_is_dvm_ena(hw);7652 7653 err = ice_aq_set_port_params(pf->hw.port_info, dvm, NULL);7654 if (err)7655 goto err_init_ctrlq;7656 7657 err = ice_sched_init_port(hw->port_info);7658 if (err)7659 goto err_sched_init_port;7660 7661 /* start misc vector */7662 err = ice_req_irq_msix_misc(pf);7663 if (err) {7664 dev_err(dev, "misc vector setup failed: %d\n", err);7665 goto err_sched_init_port;7666 }7667 7668 if (test_bit(ICE_FLAG_FD_ENA, pf->flags)) {7669 wr32(hw, PFQF_FD_ENA, PFQF_FD_ENA_FD_ENA_M);7670 if (!rd32(hw, PFQF_FD_SIZE)) {7671 u16 unused, guar, b_effort;7672 7673 guar = hw->func_caps.fd_fltr_guar;7674 b_effort = hw->func_caps.fd_fltr_best_effort;7675 7676 /* force guaranteed filter pool for PF */7677 ice_alloc_fd_guar_item(hw, &unused, guar);7678 /* force shared filter pool for PF */7679 ice_alloc_fd_shrd_item(hw, &unused, b_effort);7680 }7681 }7682 7683 if (test_bit(ICE_FLAG_DCB_ENA, pf->flags))7684 ice_dcb_rebuild(pf);7685 7686 /* If the PF previously had enabled PTP, PTP init needs to happen before7687 * the VSI rebuild. If not, this causes the PTP link status events to7688 * fail.7689 */7690 if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags))7691 ice_ptp_rebuild(pf, reset_type);7692 7693 if (ice_is_feature_supported(pf, ICE_F_GNSS))7694 ice_gnss_init(pf);7695 7696 /* rebuild PF VSI */7697 err = ice_vsi_rebuild_by_type(pf, ICE_VSI_PF);7698 if (err) {7699 dev_err(dev, "PF VSI rebuild failed: %d\n", err);7700 goto err_vsi_rebuild;7701 }7702 7703 if (reset_type == ICE_RESET_PFR) {7704 err = ice_rebuild_channels(pf);7705 if (err) {7706 dev_err(dev, "failed to rebuild and replay ADQ VSIs, err %d\n",7707 err);7708 goto err_vsi_rebuild;7709 }7710 }7711 7712 /* If Flow Director is active */7713 if (test_bit(ICE_FLAG_FD_ENA, pf->flags)) {7714 err = ice_vsi_rebuild_by_type(pf, ICE_VSI_CTRL);7715 if (err) {7716 dev_err(dev, "control VSI rebuild failed: %d\n", err);7717 goto err_vsi_rebuild;7718 }7719 7720 /* replay HW Flow Director recipes */7721 if (hw->fdir_prof)7722 ice_fdir_replay_flows(hw);7723 7724 /* replay Flow Director filters */7725 ice_fdir_replay_fltrs(pf);7726 7727 ice_rebuild_arfs(pf);7728 }7729 7730 if (vsi && vsi->netdev)7731 netif_device_attach(vsi->netdev);7732 7733 ice_update_pf_netdev_link(pf);7734 7735 /* tell the firmware we are up */7736 err = ice_send_version(pf);7737 if (err) {7738 dev_err(dev, "Rebuild failed due to error sending driver version: %d\n",7739 err);7740 goto err_vsi_rebuild;7741 }7742 7743 ice_replay_post(hw);7744 7745 /* if we get here, reset flow is successful */7746 clear_bit(ICE_RESET_FAILED, pf->state);7747 7748 ice_plug_aux_dev(pf);7749 if (ice_is_feature_supported(pf, ICE_F_SRIOV_LAG))7750 ice_lag_rebuild(pf);7751 7752 /* Restore timestamp mode settings after VSI rebuild */7753 ice_ptp_restore_timestamp_mode(pf);7754 return;7755 7756err_vsi_rebuild:7757err_sched_init_port:7758 ice_sched_cleanup_all(hw);7759err_init_ctrlq:7760 ice_shutdown_all_ctrlq(hw, false);7761 set_bit(ICE_RESET_FAILED, pf->state);7762clear_recovery:7763 /* set this bit in PF state to control service task scheduling */7764 set_bit(ICE_NEEDS_RESTART, pf->state);7765 dev_err(dev, "Rebuild failed, unload and reload driver\n");7766}7767 7768/**7769 * ice_change_mtu - NDO callback to change the MTU7770 * @netdev: network interface device structure7771 * @new_mtu: new value for maximum frame size7772 *7773 * Returns 0 on success, negative on failure7774 */7775int ice_change_mtu(struct net_device *netdev, int new_mtu)7776{7777 struct ice_netdev_priv *np = netdev_priv(netdev);7778 struct ice_vsi *vsi = np->vsi;7779 struct ice_pf *pf = vsi->back;7780 struct bpf_prog *prog;7781 u8 count = 0;7782 int err = 0;7783 7784 if (new_mtu == (int)netdev->mtu) {7785 netdev_warn(netdev, "MTU is already %u\n", netdev->mtu);7786 return 0;7787 }7788 7789 prog = vsi->xdp_prog;7790 if (prog && !prog->aux->xdp_has_frags) {7791 int frame_size = ice_max_xdp_frame_size(vsi);7792 7793 if (new_mtu + ICE_ETH_PKT_HDR_PAD > frame_size) {7794 netdev_err(netdev, "max MTU for XDP usage is %d\n",7795 frame_size - ICE_ETH_PKT_HDR_PAD);7796 return -EINVAL;7797 }7798 } else if (test_bit(ICE_FLAG_LEGACY_RX, pf->flags)) {7799 if (new_mtu + ICE_ETH_PKT_HDR_PAD > ICE_MAX_FRAME_LEGACY_RX) {7800 netdev_err(netdev, "Too big MTU for legacy-rx; Max is %d\n",7801 ICE_MAX_FRAME_LEGACY_RX - ICE_ETH_PKT_HDR_PAD);7802 return -EINVAL;7803 }7804 }7805 7806 /* if a reset is in progress, wait for some time for it to complete */7807 do {7808 if (ice_is_reset_in_progress(pf->state)) {7809 count++;7810 usleep_range(1000, 2000);7811 } else {7812 break;7813 }7814 7815 } while (count < 100);7816 7817 if (count == 100) {7818 netdev_err(netdev, "can't change MTU. Device is busy\n");7819 return -EBUSY;7820 }7821 7822 WRITE_ONCE(netdev->mtu, (unsigned int)new_mtu);7823 err = ice_down_up(vsi);7824 if (err)7825 return err;7826 7827 netdev_dbg(netdev, "changed MTU to %d\n", new_mtu);7828 set_bit(ICE_FLAG_MTU_CHANGED, pf->flags);7829 7830 return err;7831}7832 7833/**7834 * ice_eth_ioctl - Access the hwtstamp interface7835 * @netdev: network interface device structure7836 * @ifr: interface request data7837 * @cmd: ioctl command7838 */7839static int ice_eth_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)7840{7841 struct ice_netdev_priv *np = netdev_priv(netdev);7842 struct ice_pf *pf = np->vsi->back;7843 7844 switch (cmd) {7845 case SIOCGHWTSTAMP:7846 return ice_ptp_get_ts_config(pf, ifr);7847 case SIOCSHWTSTAMP:7848 return ice_ptp_set_ts_config(pf, ifr);7849 default:7850 return -EOPNOTSUPP;7851 }7852}7853 7854/**7855 * ice_aq_str - convert AQ err code to a string7856 * @aq_err: the AQ error code to convert7857 */7858const char *ice_aq_str(enum ice_aq_err aq_err)7859{7860 switch (aq_err) {7861 case ICE_AQ_RC_OK:7862 return "OK";7863 case ICE_AQ_RC_EPERM:7864 return "ICE_AQ_RC_EPERM";7865 case ICE_AQ_RC_ENOENT:7866 return "ICE_AQ_RC_ENOENT";7867 case ICE_AQ_RC_ENOMEM:7868 return "ICE_AQ_RC_ENOMEM";7869 case ICE_AQ_RC_EBUSY:7870 return "ICE_AQ_RC_EBUSY";7871 case ICE_AQ_RC_EEXIST:7872 return "ICE_AQ_RC_EEXIST";7873 case ICE_AQ_RC_EINVAL:7874 return "ICE_AQ_RC_EINVAL";7875 case ICE_AQ_RC_ENOSPC:7876 return "ICE_AQ_RC_ENOSPC";7877 case ICE_AQ_RC_ENOSYS:7878 return "ICE_AQ_RC_ENOSYS";7879 case ICE_AQ_RC_EMODE:7880 return "ICE_AQ_RC_EMODE";7881 case ICE_AQ_RC_ENOSEC:7882 return "ICE_AQ_RC_ENOSEC";7883 case ICE_AQ_RC_EBADSIG:7884 return "ICE_AQ_RC_EBADSIG";7885 case ICE_AQ_RC_ESVN:7886 return "ICE_AQ_RC_ESVN";7887 case ICE_AQ_RC_EBADMAN:7888 return "ICE_AQ_RC_EBADMAN";7889 case ICE_AQ_RC_EBADBUF:7890 return "ICE_AQ_RC_EBADBUF";7891 }7892 7893 return "ICE_AQ_RC_UNKNOWN";7894}7895 7896/**7897 * ice_set_rss_lut - Set RSS LUT7898 * @vsi: Pointer to VSI structure7899 * @lut: Lookup table7900 * @lut_size: Lookup table size7901 *7902 * Returns 0 on success, negative on failure7903 */7904int ice_set_rss_lut(struct ice_vsi *vsi, u8 *lut, u16 lut_size)7905{7906 struct ice_aq_get_set_rss_lut_params params = {};7907 struct ice_hw *hw = &vsi->back->hw;7908 int status;7909 7910 if (!lut)7911 return -EINVAL;7912 7913 params.vsi_handle = vsi->idx;7914 params.lut_size = lut_size;7915 params.lut_type = vsi->rss_lut_type;7916 params.lut = lut;7917 7918 status = ice_aq_set_rss_lut(hw, ¶ms);7919 if (status)7920 dev_err(ice_pf_to_dev(vsi->back), "Cannot set RSS lut, err %d aq_err %s\n",7921 status, ice_aq_str(hw->adminq.sq_last_status));7922 7923 return status;7924}7925 7926/**7927 * ice_set_rss_key - Set RSS key7928 * @vsi: Pointer to the VSI structure7929 * @seed: RSS hash seed7930 *7931 * Returns 0 on success, negative on failure7932 */7933int ice_set_rss_key(struct ice_vsi *vsi, u8 *seed)7934{7935 struct ice_hw *hw = &vsi->back->hw;7936 int status;7937 7938 if (!seed)7939 return -EINVAL;7940 7941 status = ice_aq_set_rss_key(hw, vsi->idx, (struct ice_aqc_get_set_rss_keys *)seed);7942 if (status)7943 dev_err(ice_pf_to_dev(vsi->back), "Cannot set RSS key, err %d aq_err %s\n",7944 status, ice_aq_str(hw->adminq.sq_last_status));7945 7946 return status;7947}7948 7949/**7950 * ice_get_rss_lut - Get RSS LUT7951 * @vsi: Pointer to VSI structure7952 * @lut: Buffer to store the lookup table entries7953 * @lut_size: Size of buffer to store the lookup table entries7954 *7955 * Returns 0 on success, negative on failure7956 */7957int ice_get_rss_lut(struct ice_vsi *vsi, u8 *lut, u16 lut_size)7958{7959 struct ice_aq_get_set_rss_lut_params params = {};7960 struct ice_hw *hw = &vsi->back->hw;7961 int status;7962 7963 if (!lut)7964 return -EINVAL;7965 7966 params.vsi_handle = vsi->idx;7967 params.lut_size = lut_size;7968 params.lut_type = vsi->rss_lut_type;7969 params.lut = lut;7970 7971 status = ice_aq_get_rss_lut(hw, ¶ms);7972 if (status)7973 dev_err(ice_pf_to_dev(vsi->back), "Cannot get RSS lut, err %d aq_err %s\n",7974 status, ice_aq_str(hw->adminq.sq_last_status));7975 7976 return status;7977}7978 7979/**7980 * ice_get_rss_key - Get RSS key7981 * @vsi: Pointer to VSI structure7982 * @seed: Buffer to store the key in7983 *7984 * Returns 0 on success, negative on failure7985 */7986int ice_get_rss_key(struct ice_vsi *vsi, u8 *seed)7987{7988 struct ice_hw *hw = &vsi->back->hw;7989 int status;7990 7991 if (!seed)7992 return -EINVAL;7993 7994 status = ice_aq_get_rss_key(hw, vsi->idx, (struct ice_aqc_get_set_rss_keys *)seed);7995 if (status)7996 dev_err(ice_pf_to_dev(vsi->back), "Cannot get RSS key, err %d aq_err %s\n",7997 status, ice_aq_str(hw->adminq.sq_last_status));7998 7999 return status;8000}8001 8002/**8003 * ice_set_rss_hfunc - Set RSS HASH function8004 * @vsi: Pointer to VSI structure8005 * @hfunc: hash function (ICE_AQ_VSI_Q_OPT_RSS_*)8006 *8007 * Returns 0 on success, negative on failure8008 */8009int ice_set_rss_hfunc(struct ice_vsi *vsi, u8 hfunc)8010{8011 struct ice_hw *hw = &vsi->back->hw;8012 struct ice_vsi_ctx *ctx;8013 bool symm;8014 int err;8015 8016 if (hfunc == vsi->rss_hfunc)8017 return 0;8018 8019 if (hfunc != ICE_AQ_VSI_Q_OPT_RSS_HASH_TPLZ &&8020 hfunc != ICE_AQ_VSI_Q_OPT_RSS_HASH_SYM_TPLZ)8021 return -EOPNOTSUPP;8022 8023 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);8024 if (!ctx)8025 return -ENOMEM;8026 8027 ctx->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_Q_OPT_VALID);8028 ctx->info.q_opt_rss = vsi->info.q_opt_rss;8029 ctx->info.q_opt_rss &= ~ICE_AQ_VSI_Q_OPT_RSS_HASH_M;8030 ctx->info.q_opt_rss |=8031 FIELD_PREP(ICE_AQ_VSI_Q_OPT_RSS_HASH_M, hfunc);8032 ctx->info.q_opt_tc = vsi->info.q_opt_tc;8033 ctx->info.q_opt_flags = vsi->info.q_opt_rss;8034 8035 err = ice_update_vsi(hw, vsi->idx, ctx, NULL);8036 if (err) {8037 dev_err(ice_pf_to_dev(vsi->back), "Failed to configure RSS hash for VSI %d, error %d\n",8038 vsi->vsi_num, err);8039 } else {8040 vsi->info.q_opt_rss = ctx->info.q_opt_rss;8041 vsi->rss_hfunc = hfunc;8042 netdev_info(vsi->netdev, "Hash function set to: %sToeplitz\n",8043 hfunc == ICE_AQ_VSI_Q_OPT_RSS_HASH_SYM_TPLZ ?8044 "Symmetric " : "");8045 }8046 kfree(ctx);8047 if (err)8048 return err;8049 8050 /* Fix the symmetry setting for all existing RSS configurations */8051 symm = !!(hfunc == ICE_AQ_VSI_Q_OPT_RSS_HASH_SYM_TPLZ);8052 return ice_set_rss_cfg_symm(hw, vsi, symm);8053}8054 8055/**8056 * ice_bridge_getlink - Get the hardware bridge mode8057 * @skb: skb buff8058 * @pid: process ID8059 * @seq: RTNL message seq8060 * @dev: the netdev being configured8061 * @filter_mask: filter mask passed in8062 * @nlflags: netlink flags passed in8063 *8064 * Return the bridge mode (VEB/VEPA)8065 */8066static int8067ice_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,8068 struct net_device *dev, u32 filter_mask, int nlflags)8069{8070 struct ice_netdev_priv *np = netdev_priv(dev);8071 struct ice_vsi *vsi = np->vsi;8072 struct ice_pf *pf = vsi->back;8073 u16 bmode;8074 8075 bmode = pf->first_sw->bridge_mode;8076 8077 return ndo_dflt_bridge_getlink(skb, pid, seq, dev, bmode, 0, 0, nlflags,8078 filter_mask, NULL);8079}8080 8081/**8082 * ice_vsi_update_bridge_mode - Update VSI for switching bridge mode (VEB/VEPA)8083 * @vsi: Pointer to VSI structure8084 * @bmode: Hardware bridge mode (VEB/VEPA)8085 *8086 * Returns 0 on success, negative on failure8087 */8088static int ice_vsi_update_bridge_mode(struct ice_vsi *vsi, u16 bmode)8089{8090 struct ice_aqc_vsi_props *vsi_props;8091 struct ice_hw *hw = &vsi->back->hw;8092 struct ice_vsi_ctx *ctxt;8093 int ret;8094 8095 vsi_props = &vsi->info;8096 8097 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);8098 if (!ctxt)8099 return -ENOMEM;8100 8101 ctxt->info = vsi->info;8102 8103 if (bmode == BRIDGE_MODE_VEB)8104 /* change from VEPA to VEB mode */8105 ctxt->info.sw_flags |= ICE_AQ_VSI_SW_FLAG_ALLOW_LB;8106 else8107 /* change from VEB to VEPA mode */8108 ctxt->info.sw_flags &= ~ICE_AQ_VSI_SW_FLAG_ALLOW_LB;8109 ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SW_VALID);8110 8111 ret = ice_update_vsi(hw, vsi->idx, ctxt, NULL);8112 if (ret) {8113 dev_err(ice_pf_to_dev(vsi->back), "update VSI for bridge mode failed, bmode = %d err %d aq_err %s\n",8114 bmode, ret, ice_aq_str(hw->adminq.sq_last_status));8115 goto out;8116 }8117 /* Update sw flags for book keeping */8118 vsi_props->sw_flags = ctxt->info.sw_flags;8119 8120out:8121 kfree(ctxt);8122 return ret;8123}8124 8125/**8126 * ice_bridge_setlink - Set the hardware bridge mode8127 * @dev: the netdev being configured8128 * @nlh: RTNL message8129 * @flags: bridge setlink flags8130 * @extack: netlink extended ack8131 *8132 * Sets the bridge mode (VEB/VEPA) of the switch to which the netdev (VSI) is8133 * hooked up to. Iterates through the PF VSI list and sets the loopback mode (if8134 * not already set for all VSIs connected to this switch. And also update the8135 * unicast switch filter rules for the corresponding switch of the netdev.8136 */8137static int8138ice_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh,8139 u16 __always_unused flags,8140 struct netlink_ext_ack __always_unused *extack)8141{8142 struct ice_netdev_priv *np = netdev_priv(dev);8143 struct ice_pf *pf = np->vsi->back;8144 struct nlattr *attr, *br_spec;8145 struct ice_hw *hw = &pf->hw;8146 struct ice_sw *pf_sw;8147 int rem, v, err = 0;8148 8149 pf_sw = pf->first_sw;8150 /* find the attribute in the netlink message */8151 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);8152 if (!br_spec)8153 return -EINVAL;8154 8155 nla_for_each_nested_type(attr, IFLA_BRIDGE_MODE, br_spec, rem) {8156 __u16 mode = nla_get_u16(attr);8157 8158 if (mode != BRIDGE_MODE_VEPA && mode != BRIDGE_MODE_VEB)8159 return -EINVAL;8160 /* Continue if bridge mode is not being flipped */8161 if (mode == pf_sw->bridge_mode)8162 continue;8163 /* Iterates through the PF VSI list and update the loopback8164 * mode of the VSI8165 */8166 ice_for_each_vsi(pf, v) {8167 if (!pf->vsi[v])8168 continue;8169 err = ice_vsi_update_bridge_mode(pf->vsi[v], mode);8170 if (err)8171 return err;8172 }8173 8174 hw->evb_veb = (mode == BRIDGE_MODE_VEB);8175 /* Update the unicast switch filter rules for the corresponding8176 * switch of the netdev8177 */8178 err = ice_update_sw_rule_bridge_mode(hw);8179 if (err) {8180 netdev_err(dev, "switch rule update failed, mode = %d err %d aq_err %s\n",8181 mode, err,8182 ice_aq_str(hw->adminq.sq_last_status));8183 /* revert hw->evb_veb */8184 hw->evb_veb = (pf_sw->bridge_mode == BRIDGE_MODE_VEB);8185 return err;8186 }8187 8188 pf_sw->bridge_mode = mode;8189 }8190 8191 return 0;8192}8193 8194/**8195 * ice_tx_timeout - Respond to a Tx Hang8196 * @netdev: network interface device structure8197 * @txqueue: Tx queue8198 */8199void ice_tx_timeout(struct net_device *netdev, unsigned int txqueue)8200{8201 struct ice_netdev_priv *np = netdev_priv(netdev);8202 struct ice_tx_ring *tx_ring = NULL;8203 struct ice_vsi *vsi = np->vsi;8204 struct ice_pf *pf = vsi->back;8205 u32 i;8206 8207 pf->tx_timeout_count++;8208 8209 /* Check if PFC is enabled for the TC to which the queue belongs8210 * to. If yes then Tx timeout is not caused by a hung queue, no8211 * need to reset and rebuild8212 */8213 if (ice_is_pfc_causing_hung_q(pf, txqueue)) {8214 dev_info(ice_pf_to_dev(pf), "Fake Tx hang detected on queue %u, timeout caused by PFC storm\n",8215 txqueue);8216 return;8217 }8218 8219 /* now that we have an index, find the tx_ring struct */8220 ice_for_each_txq(vsi, i)8221 if (vsi->tx_rings[i] && vsi->tx_rings[i]->desc)8222 if (txqueue == vsi->tx_rings[i]->q_index) {8223 tx_ring = vsi->tx_rings[i];8224 break;8225 }8226 8227 /* Reset recovery level if enough time has elapsed after last timeout.8228 * Also ensure no new reset action happens before next timeout period.8229 */8230 if (time_after(jiffies, (pf->tx_timeout_last_recovery + HZ * 20)))8231 pf->tx_timeout_recovery_level = 1;8232 else if (time_before(jiffies, (pf->tx_timeout_last_recovery +8233 netdev->watchdog_timeo)))8234 return;8235 8236 if (tx_ring) {8237 struct ice_hw *hw = &pf->hw;8238 u32 head, val = 0;8239 8240 head = FIELD_GET(QTX_COMM_HEAD_HEAD_M,8241 rd32(hw, QTX_COMM_HEAD(vsi->txq_map[txqueue])));8242 /* Read interrupt register */8243 val = rd32(hw, GLINT_DYN_CTL(tx_ring->q_vector->reg_idx));8244 8245 netdev_info(netdev, "tx_timeout: VSI_num: %d, Q %u, NTC: 0x%x, HW_HEAD: 0x%x, NTU: 0x%x, INT: 0x%x\n",8246 vsi->vsi_num, txqueue, tx_ring->next_to_clean,8247 head, tx_ring->next_to_use, val);8248 }8249 8250 pf->tx_timeout_last_recovery = jiffies;8251 netdev_info(netdev, "tx_timeout recovery level %d, txqueue %u\n",8252 pf->tx_timeout_recovery_level, txqueue);8253 8254 switch (pf->tx_timeout_recovery_level) {8255 case 1:8256 set_bit(ICE_PFR_REQ, pf->state);8257 break;8258 case 2:8259 set_bit(ICE_CORER_REQ, pf->state);8260 break;8261 case 3:8262 set_bit(ICE_GLOBR_REQ, pf->state);8263 break;8264 default:8265 netdev_err(netdev, "tx_timeout recovery unsuccessful, device is in unrecoverable state.\n");8266 set_bit(ICE_DOWN, pf->state);8267 set_bit(ICE_VSI_NEEDS_RESTART, vsi->state);8268 set_bit(ICE_SERVICE_DIS, pf->state);8269 break;8270 }8271 8272 ice_service_task_schedule(pf);8273 pf->tx_timeout_recovery_level++;8274}8275 8276/**8277 * ice_setup_tc_cls_flower - flower classifier offloads8278 * @np: net device to configure8279 * @filter_dev: device on which filter is added8280 * @cls_flower: offload data8281 */8282static int8283ice_setup_tc_cls_flower(struct ice_netdev_priv *np,8284 struct net_device *filter_dev,8285 struct flow_cls_offload *cls_flower)8286{8287 struct ice_vsi *vsi = np->vsi;8288 8289 if (cls_flower->common.chain_index)8290 return -EOPNOTSUPP;8291 8292 switch (cls_flower->command) {8293 case FLOW_CLS_REPLACE:8294 return ice_add_cls_flower(filter_dev, vsi, cls_flower);8295 case FLOW_CLS_DESTROY:8296 return ice_del_cls_flower(vsi, cls_flower);8297 default:8298 return -EINVAL;8299 }8300}8301 8302/**8303 * ice_setup_tc_block_cb - callback handler registered for TC block8304 * @type: TC SETUP type8305 * @type_data: TC flower offload data that contains user input8306 * @cb_priv: netdev private data8307 */8308static int8309ice_setup_tc_block_cb(enum tc_setup_type type, void *type_data, void *cb_priv)8310{8311 struct ice_netdev_priv *np = cb_priv;8312 8313 switch (type) {8314 case TC_SETUP_CLSFLOWER:8315 return ice_setup_tc_cls_flower(np, np->vsi->netdev,8316 type_data);8317 default:8318 return -EOPNOTSUPP;8319 }8320}8321 8322/**8323 * ice_validate_mqprio_qopt - Validate TCF input parameters8324 * @vsi: Pointer to VSI8325 * @mqprio_qopt: input parameters for mqprio queue configuration8326 *8327 * This function validates MQPRIO params, such as qcount (power of 2 wherever8328 * needed), and make sure user doesn't specify qcount and BW rate limit8329 * for TCs, which are more than "num_tc"8330 */8331static int8332ice_validate_mqprio_qopt(struct ice_vsi *vsi,8333 struct tc_mqprio_qopt_offload *mqprio_qopt)8334{8335 int non_power_of_2_qcount = 0;8336 struct ice_pf *pf = vsi->back;8337 int max_rss_q_cnt = 0;8338 u64 sum_min_rate = 0;8339 struct device *dev;8340 int i, speed;8341 u8 num_tc;8342 8343 if (vsi->type != ICE_VSI_PF)8344 return -EINVAL;8345 8346 if (mqprio_qopt->qopt.offset[0] != 0 ||8347 mqprio_qopt->qopt.num_tc < 1 ||8348 mqprio_qopt->qopt.num_tc > ICE_CHNL_MAX_TC)8349 return -EINVAL;8350 8351 dev = ice_pf_to_dev(pf);8352 vsi->ch_rss_size = 0;8353 num_tc = mqprio_qopt->qopt.num_tc;8354 speed = ice_get_link_speed_kbps(vsi);8355 8356 for (i = 0; num_tc; i++) {8357 int qcount = mqprio_qopt->qopt.count[i];8358 u64 max_rate, min_rate, rem;8359 8360 if (!qcount)8361 return -EINVAL;8362 8363 if (is_power_of_2(qcount)) {8364 if (non_power_of_2_qcount &&8365 qcount > non_power_of_2_qcount) {8366 dev_err(dev, "qcount[%d] cannot be greater than non power of 2 qcount[%d]\n",8367 qcount, non_power_of_2_qcount);8368 return -EINVAL;8369 }8370 if (qcount > max_rss_q_cnt)8371 max_rss_q_cnt = qcount;8372 } else {8373 if (non_power_of_2_qcount &&8374 qcount != non_power_of_2_qcount) {8375 dev_err(dev, "Only one non power of 2 qcount allowed[%d,%d]\n",8376 qcount, non_power_of_2_qcount);8377 return -EINVAL;8378 }8379 if (qcount < max_rss_q_cnt) {8380 dev_err(dev, "non power of 2 qcount[%d] cannot be less than other qcount[%d]\n",8381 qcount, max_rss_q_cnt);8382 return -EINVAL;8383 }8384 max_rss_q_cnt = qcount;8385 non_power_of_2_qcount = qcount;8386 }8387 8388 /* TC command takes input in K/N/Gbps or K/M/Gbit etc but8389 * converts the bandwidth rate limit into Bytes/s when8390 * passing it down to the driver. So convert input bandwidth8391 * from Bytes/s to Kbps8392 */8393 max_rate = mqprio_qopt->max_rate[i];8394 max_rate = div_u64(max_rate, ICE_BW_KBPS_DIVISOR);8395 8396 /* min_rate is minimum guaranteed rate and it can't be zero */8397 min_rate = mqprio_qopt->min_rate[i];8398 min_rate = div_u64(min_rate, ICE_BW_KBPS_DIVISOR);8399 sum_min_rate += min_rate;8400 8401 if (min_rate && min_rate < ICE_MIN_BW_LIMIT) {8402 dev_err(dev, "TC%d: min_rate(%llu Kbps) < %u Kbps\n", i,8403 min_rate, ICE_MIN_BW_LIMIT);8404 return -EINVAL;8405 }8406 8407 if (max_rate && max_rate > speed) {8408 dev_err(dev, "TC%d: max_rate(%llu Kbps) > link speed of %u Kbps\n",8409 i, max_rate, speed);8410 return -EINVAL;8411 }8412 8413 iter_div_u64_rem(min_rate, ICE_MIN_BW_LIMIT, &rem);8414 if (rem) {8415 dev_err(dev, "TC%d: Min Rate not multiple of %u Kbps",8416 i, ICE_MIN_BW_LIMIT);8417 return -EINVAL;8418 }8419 8420 iter_div_u64_rem(max_rate, ICE_MIN_BW_LIMIT, &rem);8421 if (rem) {8422 dev_err(dev, "TC%d: Max Rate not multiple of %u Kbps",8423 i, ICE_MIN_BW_LIMIT);8424 return -EINVAL;8425 }8426 8427 /* min_rate can't be more than max_rate, except when max_rate8428 * is zero (implies max_rate sought is max line rate). In such8429 * a case min_rate can be more than max.8430 */8431 if (max_rate && min_rate > max_rate) {8432 dev_err(dev, "min_rate %llu Kbps can't be more than max_rate %llu Kbps\n",8433 min_rate, max_rate);8434 return -EINVAL;8435 }8436 8437 if (i >= mqprio_qopt->qopt.num_tc - 1)8438 break;8439 if (mqprio_qopt->qopt.offset[i + 1] !=8440 (mqprio_qopt->qopt.offset[i] + qcount))8441 return -EINVAL;8442 }8443 if (vsi->num_rxq <8444 (mqprio_qopt->qopt.offset[i] + mqprio_qopt->qopt.count[i]))8445 return -EINVAL;8446 if (vsi->num_txq <8447 (mqprio_qopt->qopt.offset[i] + mqprio_qopt->qopt.count[i]))8448 return -EINVAL;8449 8450 if (sum_min_rate && sum_min_rate > (u64)speed) {8451 dev_err(dev, "Invalid min Tx rate(%llu) Kbps > speed (%u) Kbps specified\n",8452 sum_min_rate, speed);8453 return -EINVAL;8454 }8455 8456 /* make sure vsi->ch_rss_size is set correctly based on TC's qcount */8457 vsi->ch_rss_size = max_rss_q_cnt;8458 8459 return 0;8460}8461 8462/**8463 * ice_add_vsi_to_fdir - add a VSI to the flow director group for PF8464 * @pf: ptr to PF device8465 * @vsi: ptr to VSI8466 */8467static int ice_add_vsi_to_fdir(struct ice_pf *pf, struct ice_vsi *vsi)8468{8469 struct device *dev = ice_pf_to_dev(pf);8470 bool added = false;8471 struct ice_hw *hw;8472 int flow;8473 8474 if (!(vsi->num_gfltr || vsi->num_bfltr))8475 return -EINVAL;8476 8477 hw = &pf->hw;8478 for (flow = 0; flow < ICE_FLTR_PTYPE_MAX; flow++) {8479 struct ice_fd_hw_prof *prof;8480 int tun, status;8481 u64 entry_h;8482 8483 if (!(hw->fdir_prof && hw->fdir_prof[flow] &&8484 hw->fdir_prof[flow]->cnt))8485 continue;8486 8487 for (tun = 0; tun < ICE_FD_HW_SEG_MAX; tun++) {8488 enum ice_flow_priority prio;8489 8490 /* add this VSI to FDir profile for this flow */8491 prio = ICE_FLOW_PRIO_NORMAL;8492 prof = hw->fdir_prof[flow];8493 status = ice_flow_add_entry(hw, ICE_BLK_FD,8494 prof->prof_id[tun],8495 prof->vsi_h[0], vsi->idx,8496 prio, prof->fdir_seg[tun],8497 &entry_h);8498 if (status) {8499 dev_err(dev, "channel VSI idx %d, not able to add to group %d\n",8500 vsi->idx, flow);8501 continue;8502 }8503 8504 prof->entry_h[prof->cnt][tun] = entry_h;8505 }8506 8507 /* store VSI for filter replay and delete */8508 prof->vsi_h[prof->cnt] = vsi->idx;8509 prof->cnt++;8510 8511 added = true;8512 dev_dbg(dev, "VSI idx %d added to fdir group %d\n", vsi->idx,8513 flow);8514 }8515 8516 if (!added)8517 dev_dbg(dev, "VSI idx %d not added to fdir groups\n", vsi->idx);8518 8519 return 0;8520}8521 8522/**8523 * ice_add_channel - add a channel by adding VSI8524 * @pf: ptr to PF device8525 * @sw_id: underlying HW switching element ID8526 * @ch: ptr to channel structure8527 *8528 * Add a channel (VSI) using add_vsi and queue_map8529 */8530static int ice_add_channel(struct ice_pf *pf, u16 sw_id, struct ice_channel *ch)8531{8532 struct device *dev = ice_pf_to_dev(pf);8533 struct ice_vsi *vsi;8534 8535 if (ch->type != ICE_VSI_CHNL) {8536 dev_err(dev, "add new VSI failed, ch->type %d\n", ch->type);8537 return -EINVAL;8538 }8539 8540 vsi = ice_chnl_vsi_setup(pf, pf->hw.port_info, ch);8541 if (!vsi || vsi->type != ICE_VSI_CHNL) {8542 dev_err(dev, "create chnl VSI failure\n");8543 return -EINVAL;8544 }8545 8546 ice_add_vsi_to_fdir(pf, vsi);8547 8548 ch->sw_id = sw_id;8549 ch->vsi_num = vsi->vsi_num;8550 ch->info.mapping_flags = vsi->info.mapping_flags;8551 ch->ch_vsi = vsi;8552 /* set the back pointer of channel for newly created VSI */8553 vsi->ch = ch;8554 8555 memcpy(&ch->info.q_mapping, &vsi->info.q_mapping,8556 sizeof(vsi->info.q_mapping));8557 memcpy(&ch->info.tc_mapping, vsi->info.tc_mapping,8558 sizeof(vsi->info.tc_mapping));8559 8560 return 0;8561}8562 8563/**8564 * ice_chnl_cfg_res8565 * @vsi: the VSI being setup8566 * @ch: ptr to channel structure8567 *8568 * Configure channel specific resources such as rings, vector.8569 */8570static void ice_chnl_cfg_res(struct ice_vsi *vsi, struct ice_channel *ch)8571{8572 int i;8573 8574 for (i = 0; i < ch->num_txq; i++) {8575 struct ice_q_vector *tx_q_vector, *rx_q_vector;8576 struct ice_ring_container *rc;8577 struct ice_tx_ring *tx_ring;8578 struct ice_rx_ring *rx_ring;8579 8580 tx_ring = vsi->tx_rings[ch->base_q + i];8581 rx_ring = vsi->rx_rings[ch->base_q + i];8582 if (!tx_ring || !rx_ring)8583 continue;8584 8585 /* setup ring being channel enabled */8586 tx_ring->ch = ch;8587 rx_ring->ch = ch;8588 8589 /* following code block sets up vector specific attributes */8590 tx_q_vector = tx_ring->q_vector;8591 rx_q_vector = rx_ring->q_vector;8592 if (!tx_q_vector && !rx_q_vector)8593 continue;8594 8595 if (tx_q_vector) {8596 tx_q_vector->ch = ch;8597 /* setup Tx and Rx ITR setting if DIM is off */8598 rc = &tx_q_vector->tx;8599 if (!ITR_IS_DYNAMIC(rc))8600 ice_write_itr(rc, rc->itr_setting);8601 }8602 if (rx_q_vector) {8603 rx_q_vector->ch = ch;8604 /* setup Tx and Rx ITR setting if DIM is off */8605 rc = &rx_q_vector->rx;8606 if (!ITR_IS_DYNAMIC(rc))8607 ice_write_itr(rc, rc->itr_setting);8608 }8609 }8610 8611 /* it is safe to assume that, if channel has non-zero num_t[r]xq, then8612 * GLINT_ITR register would have written to perform in-context8613 * update, hence perform flush8614 */8615 if (ch->num_txq || ch->num_rxq)8616 ice_flush(&vsi->back->hw);8617}8618 8619/**8620 * ice_cfg_chnl_all_res - configure channel resources8621 * @vsi: pte to main_vsi8622 * @ch: ptr to channel structure8623 *8624 * This function configures channel specific resources such as flow-director8625 * counter index, and other resources such as queues, vectors, ITR settings8626 */8627static void8628ice_cfg_chnl_all_res(struct ice_vsi *vsi, struct ice_channel *ch)8629{8630 /* configure channel (aka ADQ) resources such as queues, vectors,8631 * ITR settings for channel specific vectors and anything else8632 */8633 ice_chnl_cfg_res(vsi, ch);8634}8635 8636/**8637 * ice_setup_hw_channel - setup new channel8638 * @pf: ptr to PF device8639 * @vsi: the VSI being setup8640 * @ch: ptr to channel structure8641 * @sw_id: underlying HW switching element ID8642 * @type: type of channel to be created (VMDq2/VF)8643 *8644 * Setup new channel (VSI) based on specified type (VMDq2/VF)8645 * and configures Tx rings accordingly8646 */8647static int8648ice_setup_hw_channel(struct ice_pf *pf, struct ice_vsi *vsi,8649 struct ice_channel *ch, u16 sw_id, u8 type)8650{8651 struct device *dev = ice_pf_to_dev(pf);8652 int ret;8653 8654 ch->base_q = vsi->next_base_q;8655 ch->type = type;8656 8657 ret = ice_add_channel(pf, sw_id, ch);8658 if (ret) {8659 dev_err(dev, "failed to add_channel using sw_id %u\n", sw_id);8660 return ret;8661 }8662 8663 /* configure/setup ADQ specific resources */8664 ice_cfg_chnl_all_res(vsi, ch);8665 8666 /* make sure to update the next_base_q so that subsequent channel's8667 * (aka ADQ) VSI queue map is correct8668 */8669 vsi->next_base_q = vsi->next_base_q + ch->num_rxq;8670 dev_dbg(dev, "added channel: vsi_num %u, num_rxq %u\n", ch->vsi_num,8671 ch->num_rxq);8672 8673 return 0;8674}8675 8676/**8677 * ice_setup_channel - setup new channel using uplink element8678 * @pf: ptr to PF device8679 * @vsi: the VSI being setup8680 * @ch: ptr to channel structure8681 *8682 * Setup new channel (VSI) based on specified type (VMDq2/VF)8683 * and uplink switching element8684 */8685static bool8686ice_setup_channel(struct ice_pf *pf, struct ice_vsi *vsi,8687 struct ice_channel *ch)8688{8689 struct device *dev = ice_pf_to_dev(pf);8690 u16 sw_id;8691 int ret;8692 8693 if (vsi->type != ICE_VSI_PF) {8694 dev_err(dev, "unsupported parent VSI type(%d)\n", vsi->type);8695 return false;8696 }8697 8698 sw_id = pf->first_sw->sw_id;8699 8700 /* create channel (VSI) */8701 ret = ice_setup_hw_channel(pf, vsi, ch, sw_id, ICE_VSI_CHNL);8702 if (ret) {8703 dev_err(dev, "failed to setup hw_channel\n");8704 return false;8705 }8706 dev_dbg(dev, "successfully created channel()\n");8707 8708 return ch->ch_vsi ? true : false;8709}8710 8711/**8712 * ice_set_bw_limit - setup BW limit for Tx traffic based on max_tx_rate8713 * @vsi: VSI to be configured8714 * @max_tx_rate: max Tx rate in Kbps to be configured as maximum BW limit8715 * @min_tx_rate: min Tx rate in Kbps to be configured as minimum BW limit8716 */8717static int8718ice_set_bw_limit(struct ice_vsi *vsi, u64 max_tx_rate, u64 min_tx_rate)8719{8720 int err;8721 8722 err = ice_set_min_bw_limit(vsi, min_tx_rate);8723 if (err)8724 return err;8725 8726 return ice_set_max_bw_limit(vsi, max_tx_rate);8727}8728 8729/**8730 * ice_create_q_channel - function to create channel8731 * @vsi: VSI to be configured8732 * @ch: ptr to channel (it contains channel specific params)8733 *8734 * This function creates channel (VSI) using num_queues specified by user,8735 * reconfigs RSS if needed.8736 */8737static int ice_create_q_channel(struct ice_vsi *vsi, struct ice_channel *ch)8738{8739 struct ice_pf *pf = vsi->back;8740 struct device *dev;8741 8742 if (!ch)8743 return -EINVAL;8744 8745 dev = ice_pf_to_dev(pf);8746 if (!ch->num_txq || !ch->num_rxq) {8747 dev_err(dev, "Invalid num_queues requested: %d\n", ch->num_rxq);8748 return -EINVAL;8749 }8750 8751 if (!vsi->cnt_q_avail || vsi->cnt_q_avail < ch->num_txq) {8752 dev_err(dev, "cnt_q_avail (%u) less than num_queues %d\n",8753 vsi->cnt_q_avail, ch->num_txq);8754 return -EINVAL;8755 }8756 8757 if (!ice_setup_channel(pf, vsi, ch)) {8758 dev_info(dev, "Failed to setup channel\n");8759 return -EINVAL;8760 }8761 /* configure BW rate limit */8762 if (ch->ch_vsi && (ch->max_tx_rate || ch->min_tx_rate)) {8763 int ret;8764 8765 ret = ice_set_bw_limit(ch->ch_vsi, ch->max_tx_rate,8766 ch->min_tx_rate);8767 if (ret)8768 dev_err(dev, "failed to set Tx rate of %llu Kbps for VSI(%u)\n",8769 ch->max_tx_rate, ch->ch_vsi->vsi_num);8770 else8771 dev_dbg(dev, "set Tx rate of %llu Kbps for VSI(%u)\n",8772 ch->max_tx_rate, ch->ch_vsi->vsi_num);8773 }8774 8775 vsi->cnt_q_avail -= ch->num_txq;8776 8777 return 0;8778}8779 8780/**8781 * ice_rem_all_chnl_fltrs - removes all channel filters8782 * @pf: ptr to PF, TC-flower based filter are tracked at PF level8783 *8784 * Remove all advanced switch filters only if they are channel specific8785 * tc-flower based filter8786 */8787static void ice_rem_all_chnl_fltrs(struct ice_pf *pf)8788{8789 struct ice_tc_flower_fltr *fltr;8790 struct hlist_node *node;8791 8792 /* to remove all channel filters, iterate an ordered list of filters */8793 hlist_for_each_entry_safe(fltr, node,8794 &pf->tc_flower_fltr_list,8795 tc_flower_node) {8796 struct ice_rule_query_data rule;8797 int status;8798 8799 /* for now process only channel specific filters */8800 if (!ice_is_chnl_fltr(fltr))8801 continue;8802 8803 rule.rid = fltr->rid;8804 rule.rule_id = fltr->rule_id;8805 rule.vsi_handle = fltr->dest_vsi_handle;8806 status = ice_rem_adv_rule_by_id(&pf->hw, &rule);8807 if (status) {8808 if (status == -ENOENT)8809 dev_dbg(ice_pf_to_dev(pf), "TC flower filter (rule_id %u) does not exist\n",8810 rule.rule_id);8811 else8812 dev_err(ice_pf_to_dev(pf), "failed to delete TC flower filter, status %d\n",8813 status);8814 } else if (fltr->dest_vsi) {8815 /* update advanced switch filter count */8816 if (fltr->dest_vsi->type == ICE_VSI_CHNL) {8817 u32 flags = fltr->flags;8818 8819 fltr->dest_vsi->num_chnl_fltr--;8820 if (flags & (ICE_TC_FLWR_FIELD_DST_MAC |8821 ICE_TC_FLWR_FIELD_ENC_DST_MAC))8822 pf->num_dmac_chnl_fltrs--;8823 }8824 }8825 8826 hlist_del(&fltr->tc_flower_node);8827 kfree(fltr);8828 }8829}8830 8831/**8832 * ice_remove_q_channels - Remove queue channels for the TCs8833 * @vsi: VSI to be configured8834 * @rem_fltr: delete advanced switch filter or not8835 *8836 * Remove queue channels for the TCs8837 */8838static void ice_remove_q_channels(struct ice_vsi *vsi, bool rem_fltr)8839{8840 struct ice_channel *ch, *ch_tmp;8841 struct ice_pf *pf = vsi->back;8842 int i;8843 8844 /* remove all tc-flower based filter if they are channel filters only */8845 if (rem_fltr)8846 ice_rem_all_chnl_fltrs(pf);8847 8848 /* remove ntuple filters since queue configuration is being changed */8849 if (vsi->netdev->features & NETIF_F_NTUPLE) {8850 struct ice_hw *hw = &pf->hw;8851 8852 mutex_lock(&hw->fdir_fltr_lock);8853 ice_fdir_del_all_fltrs(vsi);8854 mutex_unlock(&hw->fdir_fltr_lock);8855 }8856 8857 /* perform cleanup for channels if they exist */8858 list_for_each_entry_safe(ch, ch_tmp, &vsi->ch_list, list) {8859 struct ice_vsi *ch_vsi;8860 8861 list_del(&ch->list);8862 ch_vsi = ch->ch_vsi;8863 if (!ch_vsi) {8864 kfree(ch);8865 continue;8866 }8867 8868 /* Reset queue contexts */8869 for (i = 0; i < ch->num_rxq; i++) {8870 struct ice_tx_ring *tx_ring;8871 struct ice_rx_ring *rx_ring;8872 8873 tx_ring = vsi->tx_rings[ch->base_q + i];8874 rx_ring = vsi->rx_rings[ch->base_q + i];8875 if (tx_ring) {8876 tx_ring->ch = NULL;8877 if (tx_ring->q_vector)8878 tx_ring->q_vector->ch = NULL;8879 }8880 if (rx_ring) {8881 rx_ring->ch = NULL;8882 if (rx_ring->q_vector)8883 rx_ring->q_vector->ch = NULL;8884 }8885 }8886 8887 /* Release FD resources for the channel VSI */8888 ice_fdir_rem_adq_chnl(&pf->hw, ch->ch_vsi->idx);8889 8890 /* clear the VSI from scheduler tree */8891 ice_rm_vsi_lan_cfg(ch->ch_vsi->port_info, ch->ch_vsi->idx);8892 8893 /* Delete VSI from FW, PF and HW VSI arrays */8894 ice_vsi_delete(ch->ch_vsi);8895 8896 /* free the channel */8897 kfree(ch);8898 }8899 8900 /* clear the channel VSI map which is stored in main VSI */8901 ice_for_each_chnl_tc(i)8902 vsi->tc_map_vsi[i] = NULL;8903 8904 /* reset main VSI's all TC information */8905 vsi->all_enatc = 0;8906 vsi->all_numtc = 0;8907}8908 8909/**8910 * ice_rebuild_channels - rebuild channel8911 * @pf: ptr to PF8912 *8913 * Recreate channel VSIs and replay filters8914 */8915static int ice_rebuild_channels(struct ice_pf *pf)8916{8917 struct device *dev = ice_pf_to_dev(pf);8918 struct ice_vsi *main_vsi;8919 bool rem_adv_fltr = true;8920 struct ice_channel *ch;8921 struct ice_vsi *vsi;8922 int tc_idx = 1;8923 int i, err;8924 8925 main_vsi = ice_get_main_vsi(pf);8926 if (!main_vsi)8927 return 0;8928 8929 if (!test_bit(ICE_FLAG_TC_MQPRIO, pf->flags) ||8930 main_vsi->old_numtc == 1)8931 return 0; /* nothing to be done */8932 8933 /* reconfigure main VSI based on old value of TC and cached values8934 * for MQPRIO opts8935 */8936 err = ice_vsi_cfg_tc(main_vsi, main_vsi->old_ena_tc);8937 if (err) {8938 dev_err(dev, "failed configuring TC(ena_tc:0x%02x) for HW VSI=%u\n",8939 main_vsi->old_ena_tc, main_vsi->vsi_num);8940 return err;8941 }8942 8943 /* rebuild ADQ VSIs */8944 ice_for_each_vsi(pf, i) {8945 enum ice_vsi_type type;8946 8947 vsi = pf->vsi[i];8948 if (!vsi || vsi->type != ICE_VSI_CHNL)8949 continue;8950 8951 type = vsi->type;8952 8953 /* rebuild ADQ VSI */8954 err = ice_vsi_rebuild(vsi, ICE_VSI_FLAG_INIT);8955 if (err) {8956 dev_err(dev, "VSI (type:%s) at index %d rebuild failed, err %d\n",8957 ice_vsi_type_str(type), vsi->idx, err);8958 goto cleanup;8959 }8960 8961 /* Re-map HW VSI number, using VSI handle that has been8962 * previously validated in ice_replay_vsi() call above8963 */8964 vsi->vsi_num = ice_get_hw_vsi_num(&pf->hw, vsi->idx);8965 8966 /* replay filters for the VSI */8967 err = ice_replay_vsi(&pf->hw, vsi->idx);8968 if (err) {8969 dev_err(dev, "VSI (type:%s) replay failed, err %d, VSI index %d\n",8970 ice_vsi_type_str(type), err, vsi->idx);8971 rem_adv_fltr = false;8972 goto cleanup;8973 }8974 dev_info(dev, "VSI (type:%s) at index %d rebuilt successfully\n",8975 ice_vsi_type_str(type), vsi->idx);8976 8977 /* store ADQ VSI at correct TC index in main VSI's8978 * map of TC to VSI8979 */8980 main_vsi->tc_map_vsi[tc_idx++] = vsi;8981 }8982 8983 /* ADQ VSI(s) has been rebuilt successfully, so setup8984 * channel for main VSI's Tx and Rx rings8985 */8986 list_for_each_entry(ch, &main_vsi->ch_list, list) {8987 struct ice_vsi *ch_vsi;8988 8989 ch_vsi = ch->ch_vsi;8990 if (!ch_vsi)8991 continue;8992 8993 /* reconfig channel resources */8994 ice_cfg_chnl_all_res(main_vsi, ch);8995 8996 /* replay BW rate limit if it is non-zero */8997 if (!ch->max_tx_rate && !ch->min_tx_rate)8998 continue;8999 9000 err = ice_set_bw_limit(ch_vsi, ch->max_tx_rate,9001 ch->min_tx_rate);9002 if (err)9003 dev_err(dev, "failed (err:%d) to rebuild BW rate limit, max_tx_rate: %llu Kbps, min_tx_rate: %llu Kbps for VSI(%u)\n",9004 err, ch->max_tx_rate, ch->min_tx_rate,9005 ch_vsi->vsi_num);9006 else9007 dev_dbg(dev, "successfully rebuild BW rate limit, max_tx_rate: %llu Kbps, min_tx_rate: %llu Kbps for VSI(%u)\n",9008 ch->max_tx_rate, ch->min_tx_rate,9009 ch_vsi->vsi_num);9010 }9011 9012 /* reconfig RSS for main VSI */9013 if (main_vsi->ch_rss_size)9014 ice_vsi_cfg_rss_lut_key(main_vsi);9015 9016 return 0;9017 9018cleanup:9019 ice_remove_q_channels(main_vsi, rem_adv_fltr);9020 return err;9021}9022 9023/**9024 * ice_create_q_channels - Add queue channel for the given TCs9025 * @vsi: VSI to be configured9026 *9027 * Configures queue channel mapping to the given TCs9028 */9029static int ice_create_q_channels(struct ice_vsi *vsi)9030{9031 struct ice_pf *pf = vsi->back;9032 struct ice_channel *ch;9033 int ret = 0, i;9034 9035 ice_for_each_chnl_tc(i) {9036 if (!(vsi->all_enatc & BIT(i)))9037 continue;9038 9039 ch = kzalloc(sizeof(*ch), GFP_KERNEL);9040 if (!ch) {9041 ret = -ENOMEM;9042 goto err_free;9043 }9044 INIT_LIST_HEAD(&ch->list);9045 ch->num_rxq = vsi->mqprio_qopt.qopt.count[i];9046 ch->num_txq = vsi->mqprio_qopt.qopt.count[i];9047 ch->base_q = vsi->mqprio_qopt.qopt.offset[i];9048 ch->max_tx_rate = vsi->mqprio_qopt.max_rate[i];9049 ch->min_tx_rate = vsi->mqprio_qopt.min_rate[i];9050 9051 /* convert to Kbits/s */9052 if (ch->max_tx_rate)9053 ch->max_tx_rate = div_u64(ch->max_tx_rate,9054 ICE_BW_KBPS_DIVISOR);9055 if (ch->min_tx_rate)9056 ch->min_tx_rate = div_u64(ch->min_tx_rate,9057 ICE_BW_KBPS_DIVISOR);9058 9059 ret = ice_create_q_channel(vsi, ch);9060 if (ret) {9061 dev_err(ice_pf_to_dev(pf),9062 "failed creating channel TC:%d\n", i);9063 kfree(ch);9064 goto err_free;9065 }9066 list_add_tail(&ch->list, &vsi->ch_list);9067 vsi->tc_map_vsi[i] = ch->ch_vsi;9068 dev_dbg(ice_pf_to_dev(pf),9069 "successfully created channel: VSI %pK\n", ch->ch_vsi);9070 }9071 return 0;9072 9073err_free:9074 ice_remove_q_channels(vsi, false);9075 9076 return ret;9077}9078 9079/**9080 * ice_setup_tc_mqprio_qdisc - configure multiple traffic classes9081 * @netdev: net device to configure9082 * @type_data: TC offload data9083 */9084static int ice_setup_tc_mqprio_qdisc(struct net_device *netdev, void *type_data)9085{9086 struct tc_mqprio_qopt_offload *mqprio_qopt = type_data;9087 struct ice_netdev_priv *np = netdev_priv(netdev);9088 struct ice_vsi *vsi = np->vsi;9089 struct ice_pf *pf = vsi->back;9090 u16 mode, ena_tc_qdisc = 0;9091 int cur_txq, cur_rxq;9092 u8 hw = 0, num_tcf;9093 struct device *dev;9094 int ret, i;9095 9096 dev = ice_pf_to_dev(pf);9097 num_tcf = mqprio_qopt->qopt.num_tc;9098 hw = mqprio_qopt->qopt.hw;9099 mode = mqprio_qopt->mode;9100 if (!hw) {9101 clear_bit(ICE_FLAG_TC_MQPRIO, pf->flags);9102 vsi->ch_rss_size = 0;9103 memcpy(&vsi->mqprio_qopt, mqprio_qopt, sizeof(*mqprio_qopt));9104 goto config_tcf;9105 }9106 9107 /* Generate queue region map for number of TCF requested */9108 for (i = 0; i < num_tcf; i++)9109 ena_tc_qdisc |= BIT(i);9110 9111 switch (mode) {9112 case TC_MQPRIO_MODE_CHANNEL:9113 9114 if (pf->hw.port_info->is_custom_tx_enabled) {9115 dev_err(dev, "Custom Tx scheduler feature enabled, can't configure ADQ\n");9116 return -EBUSY;9117 }9118 ice_tear_down_devlink_rate_tree(pf);9119 9120 ret = ice_validate_mqprio_qopt(vsi, mqprio_qopt);9121 if (ret) {9122 netdev_err(netdev, "failed to validate_mqprio_qopt(), ret %d\n",9123 ret);9124 return ret;9125 }9126 memcpy(&vsi->mqprio_qopt, mqprio_qopt, sizeof(*mqprio_qopt));9127 set_bit(ICE_FLAG_TC_MQPRIO, pf->flags);9128 /* don't assume state of hw_tc_offload during driver load9129 * and set the flag for TC flower filter if hw_tc_offload9130 * already ON9131 */9132 if (vsi->netdev->features & NETIF_F_HW_TC)9133 set_bit(ICE_FLAG_CLS_FLOWER, pf->flags);9134 break;9135 default:9136 return -EINVAL;9137 }9138 9139config_tcf:9140 9141 /* Requesting same TCF configuration as already enabled */9142 if (ena_tc_qdisc == vsi->tc_cfg.ena_tc &&9143 mode != TC_MQPRIO_MODE_CHANNEL)9144 return 0;9145 9146 /* Pause VSI queues */9147 ice_dis_vsi(vsi, true);9148 9149 if (!hw && !test_bit(ICE_FLAG_TC_MQPRIO, pf->flags))9150 ice_remove_q_channels(vsi, true);9151 9152 if (!hw && !test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) {9153 vsi->req_txq = min_t(int, ice_get_avail_txq_count(pf),9154 num_online_cpus());9155 vsi->req_rxq = min_t(int, ice_get_avail_rxq_count(pf),9156 num_online_cpus());9157 } else {9158 /* logic to rebuild VSI, same like ethtool -L */9159 u16 offset = 0, qcount_tx = 0, qcount_rx = 0;9160 9161 for (i = 0; i < num_tcf; i++) {9162 if (!(ena_tc_qdisc & BIT(i)))9163 continue;9164 9165 offset = vsi->mqprio_qopt.qopt.offset[i];9166 qcount_rx = vsi->mqprio_qopt.qopt.count[i];9167 qcount_tx = vsi->mqprio_qopt.qopt.count[i];9168 }9169 vsi->req_txq = offset + qcount_tx;9170 vsi->req_rxq = offset + qcount_rx;9171 9172 /* store away original rss_size info, so that it gets reused9173 * form ice_vsi_rebuild during tc-qdisc delete stage - to9174 * determine, what should be the rss_sizefor main VSI9175 */9176 vsi->orig_rss_size = vsi->rss_size;9177 }9178 9179 /* save current values of Tx and Rx queues before calling VSI rebuild9180 * for fallback option9181 */9182 cur_txq = vsi->num_txq;9183 cur_rxq = vsi->num_rxq;9184 9185 /* proceed with rebuild main VSI using correct number of queues */9186 ret = ice_vsi_rebuild(vsi, ICE_VSI_FLAG_NO_INIT);9187 if (ret) {9188 /* fallback to current number of queues */9189 dev_info(dev, "Rebuild failed with new queues, try with current number of queues\n");9190 vsi->req_txq = cur_txq;9191 vsi->req_rxq = cur_rxq;9192 clear_bit(ICE_RESET_FAILED, pf->state);9193 if (ice_vsi_rebuild(vsi, ICE_VSI_FLAG_NO_INIT)) {9194 dev_err(dev, "Rebuild of main VSI failed again\n");9195 return ret;9196 }9197 }9198 9199 vsi->all_numtc = num_tcf;9200 vsi->all_enatc = ena_tc_qdisc;9201 ret = ice_vsi_cfg_tc(vsi, ena_tc_qdisc);9202 if (ret) {9203 netdev_err(netdev, "failed configuring TC for VSI id=%d\n",9204 vsi->vsi_num);9205 goto exit;9206 }9207 9208 if (test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) {9209 u64 max_tx_rate = vsi->mqprio_qopt.max_rate[0];9210 u64 min_tx_rate = vsi->mqprio_qopt.min_rate[0];9211 9212 /* set TC0 rate limit if specified */9213 if (max_tx_rate || min_tx_rate) {9214 /* convert to Kbits/s */9215 if (max_tx_rate)9216 max_tx_rate = div_u64(max_tx_rate, ICE_BW_KBPS_DIVISOR);9217 if (min_tx_rate)9218 min_tx_rate = div_u64(min_tx_rate, ICE_BW_KBPS_DIVISOR);9219 9220 ret = ice_set_bw_limit(vsi, max_tx_rate, min_tx_rate);9221 if (!ret) {9222 dev_dbg(dev, "set Tx rate max %llu min %llu for VSI(%u)\n",9223 max_tx_rate, min_tx_rate, vsi->vsi_num);9224 } else {9225 dev_err(dev, "failed to set Tx rate max %llu min %llu for VSI(%u)\n",9226 max_tx_rate, min_tx_rate, vsi->vsi_num);9227 goto exit;9228 }9229 }9230 ret = ice_create_q_channels(vsi);9231 if (ret) {9232 netdev_err(netdev, "failed configuring queue channels\n");9233 goto exit;9234 } else {9235 netdev_dbg(netdev, "successfully configured channels\n");9236 }9237 }9238 9239 if (vsi->ch_rss_size)9240 ice_vsi_cfg_rss_lut_key(vsi);9241 9242exit:9243 /* if error, reset the all_numtc and all_enatc */9244 if (ret) {9245 vsi->all_numtc = 0;9246 vsi->all_enatc = 0;9247 }9248 /* resume VSI */9249 ice_ena_vsi(vsi, true);9250 9251 return ret;9252}9253 9254static LIST_HEAD(ice_block_cb_list);9255 9256static int9257ice_setup_tc(struct net_device *netdev, enum tc_setup_type type,9258 void *type_data)9259{9260 struct ice_netdev_priv *np = netdev_priv(netdev);9261 struct ice_pf *pf = np->vsi->back;9262 bool locked = false;9263 int err;9264 9265 switch (type) {9266 case TC_SETUP_BLOCK:9267 return flow_block_cb_setup_simple(type_data,9268 &ice_block_cb_list,9269 ice_setup_tc_block_cb,9270 np, np, true);9271 case TC_SETUP_QDISC_MQPRIO:9272 if (ice_is_eswitch_mode_switchdev(pf)) {9273 netdev_err(netdev, "TC MQPRIO offload not supported, switchdev is enabled\n");9274 return -EOPNOTSUPP;9275 }9276 9277 if (pf->adev) {9278 mutex_lock(&pf->adev_mutex);9279 device_lock(&pf->adev->dev);9280 locked = true;9281 if (pf->adev->dev.driver) {9282 netdev_err(netdev, "Cannot change qdisc when RDMA is active\n");9283 err = -EBUSY;9284 goto adev_unlock;9285 }9286 }9287 9288 /* setup traffic classifier for receive side */9289 mutex_lock(&pf->tc_mutex);9290 err = ice_setup_tc_mqprio_qdisc(netdev, type_data);9291 mutex_unlock(&pf->tc_mutex);9292 9293adev_unlock:9294 if (locked) {9295 device_unlock(&pf->adev->dev);9296 mutex_unlock(&pf->adev_mutex);9297 }9298 return err;9299 default:9300 return -EOPNOTSUPP;9301 }9302 return -EOPNOTSUPP;9303}9304 9305static struct ice_indr_block_priv *9306ice_indr_block_priv_lookup(struct ice_netdev_priv *np,9307 struct net_device *netdev)9308{9309 struct ice_indr_block_priv *cb_priv;9310 9311 list_for_each_entry(cb_priv, &np->tc_indr_block_priv_list, list) {9312 if (!cb_priv->netdev)9313 return NULL;9314 if (cb_priv->netdev == netdev)9315 return cb_priv;9316 }9317 return NULL;9318}9319 9320static int9321ice_indr_setup_block_cb(enum tc_setup_type type, void *type_data,9322 void *indr_priv)9323{9324 struct ice_indr_block_priv *priv = indr_priv;9325 struct ice_netdev_priv *np = priv->np;9326 9327 switch (type) {9328 case TC_SETUP_CLSFLOWER:9329 return ice_setup_tc_cls_flower(np, priv->netdev,9330 (struct flow_cls_offload *)9331 type_data);9332 default:9333 return -EOPNOTSUPP;9334 }9335}9336 9337static int9338ice_indr_setup_tc_block(struct net_device *netdev, struct Qdisc *sch,9339 struct ice_netdev_priv *np,9340 struct flow_block_offload *f, void *data,9341 void (*cleanup)(struct flow_block_cb *block_cb))9342{9343 struct ice_indr_block_priv *indr_priv;9344 struct flow_block_cb *block_cb;9345 9346 if (!ice_is_tunnel_supported(netdev) &&9347 !(is_vlan_dev(netdev) &&9348 vlan_dev_real_dev(netdev) == np->vsi->netdev))9349 return -EOPNOTSUPP;9350 9351 if (f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS)9352 return -EOPNOTSUPP;9353 9354 switch (f->command) {9355 case FLOW_BLOCK_BIND:9356 indr_priv = ice_indr_block_priv_lookup(np, netdev);9357 if (indr_priv)9358 return -EEXIST;9359 9360 indr_priv = kzalloc(sizeof(*indr_priv), GFP_KERNEL);9361 if (!indr_priv)9362 return -ENOMEM;9363 9364 indr_priv->netdev = netdev;9365 indr_priv->np = np;9366 list_add(&indr_priv->list, &np->tc_indr_block_priv_list);9367 9368 block_cb =9369 flow_indr_block_cb_alloc(ice_indr_setup_block_cb,9370 indr_priv, indr_priv,9371 ice_rep_indr_tc_block_unbind,9372 f, netdev, sch, data, np,9373 cleanup);9374 9375 if (IS_ERR(block_cb)) {9376 list_del(&indr_priv->list);9377 kfree(indr_priv);9378 return PTR_ERR(block_cb);9379 }9380 flow_block_cb_add(block_cb, f);9381 list_add_tail(&block_cb->driver_list, &ice_block_cb_list);9382 break;9383 case FLOW_BLOCK_UNBIND:9384 indr_priv = ice_indr_block_priv_lookup(np, netdev);9385 if (!indr_priv)9386 return -ENOENT;9387 9388 block_cb = flow_block_cb_lookup(f->block,9389 ice_indr_setup_block_cb,9390 indr_priv);9391 if (!block_cb)9392 return -ENOENT;9393 9394 flow_indr_block_cb_remove(block_cb, f);9395 9396 list_del(&block_cb->driver_list);9397 break;9398 default:9399 return -EOPNOTSUPP;9400 }9401 return 0;9402}9403 9404static int9405ice_indr_setup_tc_cb(struct net_device *netdev, struct Qdisc *sch,9406 void *cb_priv, enum tc_setup_type type, void *type_data,9407 void *data,9408 void (*cleanup)(struct flow_block_cb *block_cb))9409{9410 switch (type) {9411 case TC_SETUP_BLOCK:9412 return ice_indr_setup_tc_block(netdev, sch, cb_priv, type_data,9413 data, cleanup);9414 9415 default:9416 return -EOPNOTSUPP;9417 }9418}9419 9420/**9421 * ice_open - Called when a network interface becomes active9422 * @netdev: network interface device structure9423 *9424 * The open entry point is called when a network interface is made9425 * active by the system (IFF_UP). At this point all resources needed9426 * for transmit and receive operations are allocated, the interrupt9427 * handler is registered with the OS, the netdev watchdog is enabled,9428 * and the stack is notified that the interface is ready.9429 *9430 * Returns 0 on success, negative value on failure9431 */9432int ice_open(struct net_device *netdev)9433{9434 struct ice_netdev_priv *np = netdev_priv(netdev);9435 struct ice_pf *pf = np->vsi->back;9436 9437 if (ice_is_reset_in_progress(pf->state)) {9438 netdev_err(netdev, "can't open net device while reset is in progress");9439 return -EBUSY;9440 }9441 9442 return ice_open_internal(netdev);9443}9444 9445/**9446 * ice_open_internal - Called when a network interface becomes active9447 * @netdev: network interface device structure9448 *9449 * Internal ice_open implementation. Should not be used directly except for ice_open and reset9450 * handling routine9451 *9452 * Returns 0 on success, negative value on failure9453 */9454int ice_open_internal(struct net_device *netdev)9455{9456 struct ice_netdev_priv *np = netdev_priv(netdev);9457 struct ice_vsi *vsi = np->vsi;9458 struct ice_pf *pf = vsi->back;9459 struct ice_port_info *pi;9460 int err;9461 9462 if (test_bit(ICE_NEEDS_RESTART, pf->state)) {9463 netdev_err(netdev, "driver needs to be unloaded and reloaded\n");9464 return -EIO;9465 }9466 9467 netif_carrier_off(netdev);9468 9469 pi = vsi->port_info;9470 err = ice_update_link_info(pi);9471 if (err) {9472 netdev_err(netdev, "Failed to get link info, error %d\n", err);9473 return err;9474 }9475 9476 ice_check_link_cfg_err(pf, pi->phy.link_info.link_cfg_err);9477 9478 /* Set PHY if there is media, otherwise, turn off PHY */9479 if (pi->phy.link_info.link_info & ICE_AQ_MEDIA_AVAILABLE) {9480 clear_bit(ICE_FLAG_NO_MEDIA, pf->flags);9481 if (!test_bit(ICE_PHY_INIT_COMPLETE, pf->state)) {9482 err = ice_init_phy_user_cfg(pi);9483 if (err) {9484 netdev_err(netdev, "Failed to initialize PHY settings, error %d\n",9485 err);9486 return err;9487 }9488 }9489 9490 err = ice_configure_phy(vsi);9491 if (err) {9492 netdev_err(netdev, "Failed to set physical link up, error %d\n",9493 err);9494 return err;9495 }9496 } else {9497 set_bit(ICE_FLAG_NO_MEDIA, pf->flags);9498 ice_set_link(vsi, false);9499 }9500 9501 err = ice_vsi_open(vsi);9502 if (err)9503 netdev_err(netdev, "Failed to open VSI 0x%04X on switch 0x%04X\n",9504 vsi->vsi_num, vsi->vsw->sw_id);9505 9506 /* Update existing tunnels information */9507 udp_tunnel_get_rx_info(netdev);9508 9509 return err;9510}9511 9512/**9513 * ice_stop - Disables a network interface9514 * @netdev: network interface device structure9515 *9516 * The stop entry point is called when an interface is de-activated by the OS,9517 * and the netdevice enters the DOWN state. The hardware is still under the9518 * driver's control, but the netdev interface is disabled.9519 *9520 * Returns success only - not allowed to fail9521 */9522int ice_stop(struct net_device *netdev)9523{9524 struct ice_netdev_priv *np = netdev_priv(netdev);9525 struct ice_vsi *vsi = np->vsi;9526 struct ice_pf *pf = vsi->back;9527 9528 if (ice_is_reset_in_progress(pf->state)) {9529 netdev_err(netdev, "can't stop net device while reset is in progress");9530 return -EBUSY;9531 }9532 9533 if (test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, vsi->back->flags)) {9534 int link_err = ice_force_phys_link_state(vsi, false);9535 9536 if (link_err) {9537 if (link_err == -ENOMEDIUM)9538 netdev_info(vsi->netdev, "Skipping link reconfig - no media attached, VSI %d\n",9539 vsi->vsi_num);9540 else9541 netdev_err(vsi->netdev, "Failed to set physical link down, VSI %d error %d\n",9542 vsi->vsi_num, link_err);9543 9544 ice_vsi_close(vsi);9545 return -EIO;9546 }9547 }9548 9549 ice_vsi_close(vsi);9550 9551 return 0;9552}9553 9554/**9555 * ice_features_check - Validate encapsulated packet conforms to limits9556 * @skb: skb buffer9557 * @netdev: This port's netdev9558 * @features: Offload features that the stack believes apply9559 */9560static netdev_features_t9561ice_features_check(struct sk_buff *skb,9562 struct net_device __always_unused *netdev,9563 netdev_features_t features)9564{9565 bool gso = skb_is_gso(skb);9566 size_t len;9567 9568 /* No point in doing any of this if neither checksum nor GSO are9569 * being requested for this frame. We can rule out both by just9570 * checking for CHECKSUM_PARTIAL9571 */9572 if (skb->ip_summed != CHECKSUM_PARTIAL)9573 return features;9574 9575 /* We cannot support GSO if the MSS is going to be less than9576 * 64 bytes. If it is then we need to drop support for GSO.9577 */9578 if (gso && (skb_shinfo(skb)->gso_size < ICE_TXD_CTX_MIN_MSS))9579 features &= ~NETIF_F_GSO_MASK;9580 9581 len = skb_network_offset(skb);9582 if (len > ICE_TXD_MACLEN_MAX || len & 0x1)9583 goto out_rm_features;9584 9585 len = skb_network_header_len(skb);9586 if (len > ICE_TXD_IPLEN_MAX || len & 0x1)9587 goto out_rm_features;9588 9589 if (skb->encapsulation) {9590 /* this must work for VXLAN frames AND IPIP/SIT frames, and in9591 * the case of IPIP frames, the transport header pointer is9592 * after the inner header! So check to make sure that this9593 * is a GRE or UDP_TUNNEL frame before doing that math.9594 */9595 if (gso && (skb_shinfo(skb)->gso_type &9596 (SKB_GSO_GRE | SKB_GSO_UDP_TUNNEL))) {9597 len = skb_inner_network_header(skb) -9598 skb_transport_header(skb);9599 if (len > ICE_TXD_L4LEN_MAX || len & 0x1)9600 goto out_rm_features;9601 }9602 9603 len = skb_inner_network_header_len(skb);9604 if (len > ICE_TXD_IPLEN_MAX || len & 0x1)9605 goto out_rm_features;9606 }9607 9608 return features;9609out_rm_features:9610 return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);9611}9612 9613static const struct net_device_ops ice_netdev_safe_mode_ops = {9614 .ndo_open = ice_open,9615 .ndo_stop = ice_stop,9616 .ndo_start_xmit = ice_start_xmit,9617 .ndo_set_mac_address = ice_set_mac_address,9618 .ndo_validate_addr = eth_validate_addr,9619 .ndo_change_mtu = ice_change_mtu,9620 .ndo_get_stats64 = ice_get_stats64,9621 .ndo_tx_timeout = ice_tx_timeout,9622 .ndo_bpf = ice_xdp_safe_mode,9623};9624 9625static const struct net_device_ops ice_netdev_ops = {9626 .ndo_open = ice_open,9627 .ndo_stop = ice_stop,9628 .ndo_start_xmit = ice_start_xmit,9629 .ndo_select_queue = ice_select_queue,9630 .ndo_features_check = ice_features_check,9631 .ndo_fix_features = ice_fix_features,9632 .ndo_set_rx_mode = ice_set_rx_mode,9633 .ndo_set_mac_address = ice_set_mac_address,9634 .ndo_validate_addr = eth_validate_addr,9635 .ndo_change_mtu = ice_change_mtu,9636 .ndo_get_stats64 = ice_get_stats64,9637 .ndo_set_tx_maxrate = ice_set_tx_maxrate,9638 .ndo_eth_ioctl = ice_eth_ioctl,9639 .ndo_set_vf_spoofchk = ice_set_vf_spoofchk,9640 .ndo_set_vf_mac = ice_set_vf_mac,9641 .ndo_get_vf_config = ice_get_vf_cfg,9642 .ndo_set_vf_trust = ice_set_vf_trust,9643 .ndo_set_vf_vlan = ice_set_vf_port_vlan,9644 .ndo_set_vf_link_state = ice_set_vf_link_state,9645 .ndo_get_vf_stats = ice_get_vf_stats,9646 .ndo_set_vf_rate = ice_set_vf_bw,9647 .ndo_vlan_rx_add_vid = ice_vlan_rx_add_vid,9648 .ndo_vlan_rx_kill_vid = ice_vlan_rx_kill_vid,9649 .ndo_setup_tc = ice_setup_tc,9650 .ndo_set_features = ice_set_features,9651 .ndo_bridge_getlink = ice_bridge_getlink,9652 .ndo_bridge_setlink = ice_bridge_setlink,9653 .ndo_fdb_add = ice_fdb_add,9654 .ndo_fdb_del = ice_fdb_del,9655#ifdef CONFIG_RFS_ACCEL9656 .ndo_rx_flow_steer = ice_rx_flow_steer,9657#endif9658 .ndo_tx_timeout = ice_tx_timeout,9659 .ndo_bpf = ice_xdp,9660 .ndo_xdp_xmit = ice_xdp_xmit,9661 .ndo_xsk_wakeup = ice_xsk_wakeup,9662};9663